The Marlborough Sounds covers an area of over 50,000 hectares, made up of nearly 100 parks and reserves, and 900 kilometres of unique foreshore comprising of sounds, reaches, harbours and large bays. A number of diving locations are in easy reach of Picton and Waikawa Bay. All are in the wake of the fast ferries, but offer rewarding diving, especially if you have time to explore, rather than take. The wrecks of the Mikhail Lermontov, Lastingham and Rangitoto ca be found in the Marlborough Sounds. Article of interest: In the wake of the fast ferries.
Long Island – Kokomohua Marine Reserve – Established in 1993 the reserve covers 619ha in Queen Charlotte Sound. Semi-sheltered mid and outer sound, typical of Marlborough Sounds marine and inter-tidal ecosystems. Sub-tidal rubble, gravel and sand, algal fringe, warm and cold temperate reef fish.