Similajau National Park, Sarawak

A narrow strip of coastal rainforest and beach north of Bintulu, Similajau is one of Sarawak's best-kept secrets — a park of irresistible wildlife density where saltwater crocodiles bask on river sandbanks, green sea turtles nest on the beaches between May and September, and troops of banded langur and long-tailed macaques move through the coastal forest canopy.