"Mermaids are Real" $37 One Tank Boat Trip, 8 am - 12 pm. Free Try Scuba Diving, 10 am - 2 pm. BIGGEST SALE OF THE YEAR!! 10% off storewide. 37% off masks, fins, wetsuits, dive computers, rashguards, dive & snorkel gear. Find deals up to 60% Off. Dive gear packages include a free gift. Specials on mermaid merchandise. Anniversary Air Fill Card is Back!! 10 airfills for $37.00, regularly $6.00 per fill. *Must be present to purchase. One per cert card.