As a small island located 12km west of Ha Long city, with the area of 8.7 hectare, the island with two mountain top of about 100m high above the sea level, Soi Sim Island has very special geological formation 2/3 of which covered by Feralit and soil weathered by wind, which is favourite condition for the growth of a plant species named Sim (scientific name: Rhodomyrtus tomentosa). That’s why the local people named this island Soi Sim. It’s noticeable that Sim trees often bloom and bear fruit annual between March and August. Sim fruits is quite good for our health so people use as traditional medicine or soak with rice wine for drinking. The Sim fruit crop is on July, August.
The island has been existed about hundred of million years ago and surrounded by the sea then there are endemic plants, according to researchers. It’s beautiful island with a primitive forest of varieties of flora and fauna, and endemic plants of Ha Long bay Ecology.
Near by the popular and busy TiTop beach, Soi Sim is quite new with travelers and still being clean and beautiful attraction compared with other ones in Ha Long bay because it has just been opened for tourists about 10 years.