Asea kayak ortouring kayak is akayak used for the sport ofpaddling on open waters of lakes, bays, and oceans. Sea kayaks areseaworthy small boats with a covered deck and the ability to incorporate aspray deck. They trade off the manoeuvrability ofwhitewater kayaks for higher cruising speed, cargo capacity, ease of straight-line paddling (tracking), and comfort for long journeys.
Sea kayaks are used around the world for marine (sea) journeys from a few hours to many weeks, and can accommodate one to three paddlers along with their camping gear, food, water, and other supplies. Solo sea kayaks are 3.0–5.5 m (10–18 ft) long, while tandem craft can be up to 8 m (26 ft) long;beam widths range from 53 cm (21 in) to 91 cm (36 in).
The term "sea kayaking" may have been popularised by the 1981 bookSea Kayaking by John Dowd, who said, "It wasn't called sea kayaking until my book came out; it was called kayak touring or sea canoeing or canoe touring, blue-water paddling, coastal paddling, all those things".[1]
Contemporary sea kayaks trace their origin to the native boats ofAlaska, northernCanada, and SouthwestGreenland.Inuit (formerlyEskimo) hunters developed a fast seagoing craft to huntseals andwalrus.[2] The ancientAleut name for anAleutian kayak isIqyak,[3] and earliest models were constructed from a light wooden frame (tied together withsinew orbaleen) and covered withsea mammal (sea lion orseal) hides. Archaeologists have found evidence indicating that kayaks are at least 4000 years old.[4] Wooden kayaks and fabric kayaks on wooden frames (such as theKlepper) dominated the market up until the 1950s, when fiberglass boats were introduced.Rotomoldedplastic kayaks first appeared in 1984.
Modern sea kayaks come in a wide array of materials, designs, and sizes to suit a variety of intended uses. In sea kayaking, where the designs continue along primarily traditional lines, the primary distinction is betweenrigid kayaks andFolding kayaks. Folding kayaks are in some ways more traditional boats, being similar in design toskin-on-frame kayaks used by native people. Modern folding kayaks useash andbirch or contemporary materials such asaluminum for the frame, and replace thesealskin covering with synthetic waterproof fabrics. Unlike rigid kayaks, folding kayaks can be easily disassembled and packed for transport. Many folding kayaks include inflatablesponsons that improve thesecondary stability of the vessel, helping to prevent capsize. More recently, a class of inflatable folding kayaks has emerged, combining a more limited rigid frame with a tightly inflated skin to produce greater rigidity than an inflatable boat alone.
In recent years, there has been an increase in production ofsit-on-top kayaks suitable for sea use.[citation needed][5]
Most rigid sea kayaks also derive from the external designs of native vessels, especially those from Greenland, but the strength of modern materials such asfiberglass,rotomolded plastic andcarbon fiber eliminate the need for an internal frame, though significantly increasing weight. Modernskin-on-frame sea kayaks constructed withnylon skins represent an ultralight niche within the rigid sea kayak spectrum. Some recent design innovations include:
A different class of vessel emerged in the 1960s, thesurf ski, a long, narrow boat with low inherent stability that is intended for use in surf andfollowing waves.
Most production sea kayaks are between 3.7 and 7.3 m (12 and 24 ft) in length, the larger kayaks often built for two (or in rare cases, three) paddlers. The width (beam) of typical kayaks varies from 46 to 81 cm (18 to 32 in), though specialized boats such assurf skis may be narrower.[6][7] The length of a kayak affects not only its cargo capacity (for both gear and paddlers) but may also affect its "tracking" ability—the ease with which the boat travels in a straight line. While other design features also impact tracking, very long kayaks are easier to paddle straight (and harder to turn). The width of a kayak affects the cargo capacity, the maximum size of the cockpit (and thus the size of the paddler in that cockpit), and (to a degree that depends on the design of the hull) thestability.[8]
Most rigid production kayaks are now made out offiberglass,rotomolded polyethylene, thermoformed plastic, blow moulded polyethylene orcarbon-kevlar. More exotic materials includecarbon fiber andfoam core. Some kayaks are hand-built fromplywood or wood strips covered withfiberglass. Skin-on-frame kayaks are built on wood or aluminum frames covered incanvas,dacron, or other fabrics, and may include inflatable tubes calledsponsons.
Marine grade plywood available today provides a high strength to weight ratio for kayak construction.Inflatable kayaks may be made from cheaperpolyvinyl chloride (PVC) with a nylon outer skin to resist abrasion, or more expensive single-skin designs made from hypalon which is very tough and easy to dry after use.
There are many design approaches for the bow, stern, and deck of kayaks. Some kayaks haveupturned bows, which are meant to provide better performance when paddling into waves, as well as better wave-shedding ability. Other kayaks achieve this through increasedbuoyancy in the bow. Kayaks with unobstructed stern decks may ease certain types ofself-rescue. Waterproof bulkheads in modern kayaks provide flotation in the event of capsize.
Sea kayak decks typically include one or more hatches for easy access to the interior storage space inside. Kayak decks usually include attachment points fordeck lines of various kinds, which are aids in self-rescue and attachment points for above-deck equipment or luggage.
Cockpits can be of several designs. They can be large or small. A largekeyhole cockpit can give the advantages of both, and combine firm contact between paddler and boat, while offering relatively easier access.
Sea kayaks have a wide range of hull designs, which greatly expands their range of performance. Designs can accommodate a wide range of physical fitness, or usage. Boats come in many lengths, whereby shorter boats are generally more maneuverable, and longer boats generally travel straighter and faster. Width of beam can affect a boat's stability, speed, and ability to bring to an edge. The amount of rocker (the curve from bow to stern) can greatly affect the ability of a boat to turn.
Many have steering gear or tracking aids in the form ofrudders orskegs. In most cases, rudders are attached at the stern and operated by lines (wire or synthetics such asSpectra) from foot pedals in the cockpit. Rudders are typically retractable for beach landings. Skegs are typically retractable straight blades that drop from a well in the stern of the boat. Both devices assist in paddling when a strong wind or waves are coming from a direction other than directly in front.[9] Some skegs may be more effective at counteringpitch,roll andyaw.[10][11][12][13][14]
Sea-kayakpaddles, and the associated paddling styles, fall into three basic classifications:
True sea kayaks, not to be mistaken for wider, more stable recreational kayaks, are available in many designs. The length of a solo sea kayak can range anywhere from 4.3 to 6.1 m (14 to 20 ft) long, and tandem kayaks can range from 5.5 to 7.3 m (18 to 24 ft) long. Sea kayaks can range in width (beam) from 22 to 24 inches wide.[15] Wider touring kayaks of 60 to 75 cm (24 to 30 in)[citation needed]) are better for bigger paddlers, or small/average sized paddlers looking for more initial stability and maneuverability. Narrower beams of 50 to 65 cm (20 to 26 in)[citation needed] are good for small-medium-sized paddlers who want more speed and less maneuverability. And lastly, kayak depth (or the height from the hull to the highest area of the deck) can range from 28 to 40 cm (11 to 16 in)[citation needed] high.
This design is typical of modern sea kayaks and has a low rear deck for easy rolling, a white water cockpit, compartments that allow the kayaker to reach into them while at sea, and a sloping rear bulkhead that enables the kayak to be emptied by lifting the bow.
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A sea kayak's primary safety device is its paddler. Although some kayakers consider a well-practised self-righting move such as anEskimo roll to be essential in order to safe open-water kayaking, it is the technique of bracing that every well-trained, experienced kayaker practises in order to maintain an upright position in their kayak. Practice in bracing is often neglected by inexperienced kayakers once they have learned the Eskimo roll. However, the reality is that having to roll really means having to recover from a failed brace. Being in the capsized position in some environments due to missing a brace can put the paddler in danger of colliding with obstacles under the water. Staying upright in surf zones, rocky surf zones (informally known as rock gardens), and rivers is most important and is only accomplished through well-practised and successful bracing.
While there are a number of techniques for unassisted righting and re-entry of a kayak after acapsize andturtling, most paddlers consider it safest to paddle with one or more others, as assistance is useful if attempting to recover via rolling solo fails. Even if the assistance fails to successfully right the kayaker, it is much easier to climb back into a boat in the open sea if one has another boat and paddler to help and the swamped boat has been emptied of water first. Nonetheless, experienced paddlers do attempt open-water crossings unaccompanied, and many major long-distance kayak expeditions have been carried out solo.
The use of apaddle float self-rescue device, generally consisting of foam or in the form of an inflatable bag, and attached to the end of a paddle when needed, allows the paddle to be used as an outrigger while climbing back into the cockpit. If an inflatable paddle float is chosen, it should be a dual-chambered model on account of the safety advantage (in the event of failure of one chamber) that is conferred by the redundancy. The kayaker is advised to train with only one chamber inflated. In many areas (Canada, for instance), a paddle float is a safety item required by the coast guard. Re-entry using a paddle float is a fairly reliable rescue technique that, if well practised, allows one to paddle with confidence when one is not equipped with a flawlessly honed rolling skill.
There is a strong culture of self-sufficiency amongst sea kayakers and extensive safety equipment such as compass, towing lines, manual pumps, repair kits including wet application repair tape, flares,paddle leash, spare paddles, and survival gear are routinely carried; along with supplies of food and a flask of hot beverage for non-emergency use. GPS, charts, lights, radios and cell phones, andradar reflectors are also sometimes carried.
Developed by kayak enthusiasts, Kayak sails can supplement or effectively eliminate the need for paddling. Using a sail can increase offshore range and allow longer expeditions. Use of a sail for touring has established a strong following with recreational sea kayakers, expedition paddlers, and adventure racers.
Weekend trips with overnight camping are popular among recreational kayakers and many combine kayaking with wildlife watching. Modern sea kayaks are designed to carry large amounts of equipment and unsupported expeditions of two weeks or more are conducted in environments ranging from the tropics to the Arctic. Expedition kayaks are designed to handle best when loaded, so it may be necessary to ballast them on shorter trips.
Closely related to surf boards and requiring a mix ofsurfing and kayaking skills, a wide range of sea kayaks are specifically designed for the sport ofsurf kayaking.
The seakayak has long been a means of transportation and a means of accessing fishing grounds and kayak fishing has gained popularity due to the availability of purpose built stable designs. This technological development also solves some ergonomic problems that are associated with sitting for long hours without being able to change positions and special kayaks for fishing are accessorized for this sport, including specially-designed hatches, built-in rod holders, catch bags and equipment mounts.
Many of the techniques used in kayak fishing are the same as those used on other fishing boats. The difference is in the set-up, how each piece of equipment is fitted to the kayak, and how each activity is carried out on such a small craft. Contemporary kayaks can be equipped with fishing aids such as rod holders, electronicfish-finders and live-bait containers. Kayakanglers target highly prized bottom feeders likehalibut andcod and alsopelagics likeamberjacks,tuna,sailfish,wahoo, and evenmarlin.
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