Family fun with Waikiki beginner scuba diving tours for ages 10 and over. Scuba diving is safer, easier and way more fun than snorkeling Our introductory scuba lessons will enable you to enjoy diving safely to a depth of 40 feet. Rainbow Scuba Hawaii offers morning scuba dives at 9:30 am, afternoon scuba dives at 1:30 pm, and for certified divers a night wreck scuba dive at 6:30 pm.