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Historical mosque in Natuna Islands. If you're lucky, the locals will show you historical cemeteries in Pulau Tiga Island District/Kecamatan Pulau Tiga.
© OpenStreetMap contributors
People will usually use these opportunities to do snorkeling and diving by equipment that usually rented in Great Natuna Island, especially in Ranai Town.
Make sure to call the phone number if you want to go to restaurant for its crab or its Pilsbryoconcha exilis/freshwater clam. The locals called clam as kerang lokan/lukan. Try coconut drink in a hard shell mixed with mangrove syrup.
Spend the time by walking over the wooden track for at least 900 metres, seeing endangered Natuna Island surili known by local as kekah monkey/kekah, tracking the stream by wooden motor powered boat, or catching black crab/Scylla serrata/kepiting bakau and blue crab/Portunus armatus/kepiting rajungan.