I'm in California and I'm going to build a pond for my turtles outside. I've been reading and waster needs to be around 75 degrees. Whats the best way to keep the water the right temp. I plan to build a pond 12 feet wide by 6 feet by 4 feet deep. Not sure about the 4 feet yet. My reason for the 4 feet to let the turtles have a place to hide if they need too far enough under the water. I just need to find out how to keep the water the right temp and how to keep the land the right temp. Do I put heat lamps on the land for the winter months when its 60 degrees. I need to get my hands around the right way to keep the water the right temp and a way they can come out of the water in the winter and have a place to dry off and get warm.
Anyone can help that would be cool. New here and I can't find this topic on the forum.
Thanks. My goal is to have a pond in my backyard in the next 4 months.

