Saw two Geckos on the concrete ceiling of our hostel bathroom. Was trying to figure out if it actually is a Tokay Gecko because the colour was not very bright but I think they can change colour to match the background.
Noticed this Water Monitor near a river in Chumphon. It was about 1 meter long from nose to tail. When it noticed me it turned and ran into the river with surprising speed. It then swam to the safety of the opposite riverbank in a very crocodile like fashion.