This "trail" consists of places where backpackers hang out such as cafes, restaurants, bars etc. It's cool that fellow travelers can recommend many places to eat/drink/go but might be a bit of a shame to travel all the way to spend all time with foreigners rather than locals!
Bangtao is a few km long which is great for a walk along the shore. It's very pleasant in the early morning when the sun isn't too strong and the beachgoers aren't there yet.