Red Eared Slider Outdoor Pond Why Would A Red Eared Slider Leave My Outdoor Pond ?

Why would a red eared slider leave my outdoor pond ? - red eared slider outdoor pond

I have 4 red eared slider look in my pond and just happened today, and are the two major parties. We live in the city center, so I thought it was odd for a possum to get them. Is this normal? Do not be put on the lagoon this time every year, eggs or something else?