First of all we aren't mountainous and don't have rivers, so we don't have run-off into the oceans, inhibiting reef development. Third, we have always been very conscious of our precious resource and guarded it by establishing Marine Parks, limiting fishing, virtually spear fishing, outlawing anchoring, educating divers and self-policing the behaviour of our dive operations. Yes, various dive operators throughout the three islands stock nitrox. Many of the operators offer nitrox certification. Call ahead to ensure your dive operator stocks Nitrox.
Most operators allow children and snorkellers on the boat.
We advise that you call ahead to secure a space as all operators have different policies. Yes, there are various wrecks in The Cayman Islands. The most famous sites are the Doc Poulson, MV Capt. Keith Tibbetts, Oro Verde, The Kirk Pride, and Balboa. In the last few years the Government has opened a wonderful Botanical Garden, renovated the oldest building on the island, the Pedro St. James complex, expanded the Cayman Museum, which won an American Express Award, done a lot of work improving the Cayman Turtle Farm - it goes on and on.