Talk about bang for your buck ... Victoria's Secret is still putting Candice Swanepoel through her paces on the beach in St. Barts -- thank God.

Candi's been shooting all week down there -- in a number of flexible poses -- and Tuesday she slipped into a wetsuit-ish thing. Not really sure what to call it, except freakin' hot.

Sign her up to be the next Bond girl ... guarantee Daniel Craig will reconsider quitting.