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The marine reserve in Tikioki, is a traditional protective measure for conserving resources according to traditional practices. Established in the late 1990's the Tikioki Marine Reserve (better known as a Raúi) has become robust with a vibrant array of tropical fish species representative of the southern lagoon ecosystem of Rarotonga. This Raúi has become a focal point for learning about marine protection, as well as raising awareness about healthy and fully-functioning marine ecosystems. Snorkelling and swimming are major pastimes associated with this marine reserve. The lagoon cruises that operate from Muri include a scheduled stop near the reefline. Snorkelling from the shoreline and reefline are excellent opportunities ways to explore fish species, corals, Paua-clams, starfish, seaweeds and sea urchins.