Kinda boring but I would say mid Atlantic USA. Roughly between Virginia and NYC east of Appalachians. Why? Variety. You get four seasons, each season itself h

Kinda boring but I would say mid Atlantic USA. Roughly between Virginia and NYC east of Appalachians. Why? Variety. You get four seasons, each season itself has different weather patterns. Enough to range between hot pool weather summer and 1 or 2 significant snowfalls a year. Beaches are not terrible with warm water thanks to Gulf Stream. Waves aren’t puny but not huge. Accessible and not terrifying mountains/hills in Appalachia. Not so far south you’ll die in the summer humidity. Not so far north you deal with like effect snow.