We did the bus tour in St Martin and then returned, had lunch and took the water taxi into town and walked around. There wasn't anything truly interesting to me in town, unless you count your over the average number of jewelry stores, tshirt shops and general made in china type of tourist stuff. St Thomas has a Kmart near the dock (but not right at the dock) and the shops in port are similar to St Martin. Countless jewelry shops and embroidered tablewear stores. Plenty of time but nothing I wanted to buy.