The area around Whitianga is one of great beauty, and offers wonderful opportunities for diving, snorkelling and kayaking.

Whitianga Sports Centre in town has diving or snorkelling gear  to hire.
There are several charter boats in town for diving, including Waters Edge Charters , the M.V.Star Trek, and Mercury Bay Charters.
For the all-in-one package, Cathedral Cove Dive offers dive trips and PADI courses.
Cathedral Cove Sea Kayaking is the most popular of the Kayaking concerns around, with trips through and around Cathedral Cove and other areas of this beautiful coastline.

More information can be found on the following websites:
Whitianga Information Centre
The Coromandel Website