Trat, nice long beach, you can get a boat to koh Chang (nice national park) and koh mak islands.Or Chiang Mai, no beaches, but jungle treks, there are bars and restaurants there, loads of stuff to do, my kids loved it but they are boys so more interested in elephants, zip lining and stuff.If I wanted something really different, still with a few bars but nowhere near as "Commercialised" as LOS, BUT the beaches are world class, I mean superb, I would go to palawan in the Philippines, still in the region, food isn't as good though but everyone speaks English.