Thailand is fast becoming one of the best venues for golf in South-East Asia with many courses designed by top international golfers. Green fees are generally much less than those charged in Europe or the USA.
Around the country there are a number of associations of golfing enthusiasts who organise tournaments and social golfing activites. Membership is low cost and provides discounts at local courses. Even if you are visiting for only 2 weeks you will be welcome and you will recoup your membership fee though the discounts when you play. Visit their web site for details of courses, fees and upcoming events.
There are some excellent diving sites around Thailand. Pattaya and Phuket have dive schools with qualified instructors, many of them from overseas, and cater for beginners or experienced divers.
Other popular areas for diving are around Koh Samui and Chumphon and Krabi
Thailand has karting tracks located at Bangkok, Chiang Mai, Hua Hin, Rayong, Nakorn Ratchasima, and Pattaya. The tracks vary in length and complexity. They generally offer karts to suit drivers of all levels including children. Instructors are on hand if required and safety equipment is provided. If you have your own Kart, the use of the tracks can be rented by the day.