if you are looking for things to do apart from sunbathe and the usual things,
we had a really enjoyable morning learning how to cook thai dishes with a lovely young women called pui.
this is also not too involved and serious so suitable for the non cooking partner as well. it it will give you a fair idea as to the ingredients which go into thai food and more to the point it helped me as a first time visitor to the country, understand the dishes i was eating in restaurants, whether they were not to my taste or just badly cooked.
the kitchen she uses has been built specifically for this purpose. you get picked from your resort and taken to the market, where you help her to buy the ingredients and you get a flavour real thai life. you then get shown how to cook the food and also help a bit with the prep work. each of us got 2 dishes we could chose and by lunch time we a veritable feast laid out on a table for us to tuck into.
she is is bang la on and if you'r interested her email is email@example.com