While Vietnam and Hoi An in particular are not renowned as diving hubs, travellers will be surprised to find the excellent conditions available on the ground for the deep sea exploration activity. Hoi An is particularly blessed in this regard as the beauty of its underwater coral gardens is simply unmatched. Unlike more popular diving hotspots, Hoi An's waters and submerged landscapes remain untouched and pristine while teeming with marine life the likes of barracudas, dugongs, basslets and bamboo sharks. The best time to go diving in Hoi An is during the months from March till October when the waters are warm and more species are spotted in general. Those based at Anantara Hoi An Resort and similar venues will find that signing up for diving excursions in among the most engaging things to do in Hoi An.