Golf at BKK
There are a lot of wonderful sights to see, any number of websites or guidebooks can reveal a lot of suggestions. There are probably a few suggestions in this forum?
example
What does your husband like to do, besides play golf?
Traditional Thai Massage at Wat Pho (and the Reclining Buddha always amazes me)
Ride the water taxi
Royal Barge Museum
Wat Arun
National Museum
Wat Phra Keo
Day trip to Ayattaya