http://boathousephuket.com/
Can't recommend this place enough! Kata is a nice relaxed and romantic beach, book in a trip to PhiPhi for a few days and get your "The Beach" experience, oh and do Hongs by Starlight!
http://johngray-seacanoe.com/thailan...-starlight.htm
http://www.mayabaytours.com/#!plankton-tour/c15o7