Been here 4 times. This was the first time we visit and it was not cold. Love this place. Make sure you always bring an umbrella or your rain jacket, you never know when it’s going to rain
In Ko Tao they have everything. Once you get a bit bored of snorkeling (if possible?) you can head for climbing, both outside and inside. Climbing Project has very helpful staff who care about the customers, safety and having fun.