I have three adult RES in a 150 outdoor pond with two basking areas with UVB light, double waterfall filtration, and a fenced area for them to wander around in. The pond gets natural sunlight in the morning up until around 11 AM, where they all bask. The rest of the time they swim around, chase fish, eat hang out under the lamps, do turtle stuff, etc. All are healthy and are voracious eaters and get along with each other.
But one of them (Mikey, the only male) has suddenly got a big case of wanderlust. He's on land quite a lot, testing parts of the fence to see if he can get through to the rest of the yard. When I'm outside I'll let him roam around on the big lawn, which he's quite happy to do, exploring and running, but not digging... just cruising. I'm wondering if it's because it's starting to get warmer, therefore being more active? Or is this some male thing? Why aren't the girls doing the same?