I have been asked to give a consult and estimate on the construction of a Turtle Pond. Though not one of my main avenues of endeavor, I know that turtles, by nature, are nasty critters, so the usual water quality concerns need to be addressed (skimmer, Filter etc.) I also know that they need to sun themselves quite often and they like to burrow underwater. The client has emphasized the fact that they were not particularly concerned about aesthetics and pretty aquatic plantings but just wanted a pond for her pets. If anyone has had any experience in this area, please advise me on any peculiar idiosyncrasies concerning turtles, their culture and habitat, that I need to be aware of.