Kolagachia is one of the wonders of Sundarban; situated under Satkhira range of Sundarban Forest Department. It is about 12-13 hours state journey by river cruise from Khulna to Kolagachia.

Thousands of dotted deer and wild boars can be seen in this spot. The eyes of deer look like thousands of light at night. Different types of bird are the attraction of Kolagachia. The natural scenery of Kolagachia is really attractive for visitors. Fishermen catch different species of fishes in Kolagachia cannels. Wooden trail at Kolagachia Ecotourism Center in the Sundarbans, a UNESCO world heritage site and a wildlife Sanctuary. The largest littoral mangrove forest in the world Kolagachia is situated in Satkhira district, Bangladesh. Rhesus monkey is a great attraction of Kolagachia Eco tourism. It has a lovely trail on raised mud paths in the flooded forest, teaming with wildlife even in the hot, mid-day sun, owls are observed in close quarters. The honey collectors gather honey from the deep forest.