Aloha from Maui,
Depending on where you stay in Wailea, Ultra Dive has locations at either end of the shoreline sidewalk. At the Kea Lani (Fairmont) 8-12 year olds can participate in the Bubble Maker pool class (1PM daily). To dive in open water you must be at least 10, and I'm pretty sure snuba is the same.
Both the Kea Lani and the Renaissance locations offer Intro dives for the non-certified and kick or scooter dives for certified divers. If you are experienced, adventurous and good on your air, we could scooter out to the St. Anthony wreck from the Renaissance. You do not have to be a resort guest to dive with us.
I am the full time instructor at the Renaissance and we do our Intro practice in the hotel pool, use fresh tanks for the ocean, put the heavier breathers on 80's (one 100 available) and get nearly everyone out to the turtle cleaning station at the end of second reef (Ulua). The reason I mention all that is because you won't always get those things with the parking lot instructors.
Today my intro group saw three Spotted Eagle Rays and a couple Green Sea Turtles, as well as numerous reef fish. Turtles are 99.9% guarenteed, eels 80%, octopus 50%, rays 15% (all aprox).
At least stop by and say hi at our kayak/surf/snorkle booth on the sidewalk in front of the Renaissance or the Scuba Center just across the lawn from there.
Mahalo,
Steve