Have just found this great site, for All-Terrain, Offroad Wheelchairs. Ideal for the beach’s in Southern Thailand.
Check them out at:
http://www.terraineanproducts.com/manual_beach_wheelchair.html
The De-Bug All-Terrain Wheelchair has a frame constructed from #316L Stainless Steel tubing for unparalleled corrosion resistance with large Wheeleez® front tyres and smaller castering rear wheels, an articulating rear suspension system, standard wheelchair brakes with stainless steel hardware. Lap Seat belt and swing away removable armrests.
The rear suspension casters and articulates +/- ~20 degrees, allowing all four wheels to remain in contact with the ground when going across uneven terrain, making it much more stable than standard outdoor wheelchairs. The comfortable sling seating system material is made from Phiffertex tm. which has an U.V. inhibitor. Armrests are easily removable for lateral transfers.
Options
Custom Ratcheting Self Propulsion – This feature is designed for very strong paraplegics and may not be suitable for other wheelchair users.
Interchangeable Pool Wheels.
Quick Release Pins for disassembling without tools.
Custom Headrest.
Lateral Support.
Two piece Sunbrella Cushion.
Custom Powder Coat Paint, You pick the color!
Chest strap with D-Ring release.
Butterfly Chest Strap.
Fishing Pole Holder.
Drink Holder.
Umbrella with holder made to fit chair.
Specification
Frame: #316L Stainless Steel tubing
Overall height: 22″
Overall Width: ~33.5″, 26″ with pool wheels
Rider Weight Capacity: Up to 350lbs
i’ve seen similar in use, down in Cornwall…….imagine getting your feet into that cool surf….