sandboard

noun
A board resembling a snowboard and equipped with bindings, used for descending sand dunes on one's feet.
intransitive verb
sand·board·ed, sand·board·ing, sand·boardsTo use a sandboard.
Related Forms:
- sand′board′er
noun
sandboard

Verb
(third-person singular simple present sandboards, present participle sandboarding, simple past and past participle sandboarded)
- To ride on a sandboard