Is the jacuzzi open year around?
Nope ..the pool and Jacuzzi are open up in the summertime. you would freeze your butt off!
I don't think the pool or jacuzzi are open year round. Their website says "seasonal." It wouldn't be a pleasant walk from the hot tub back to your room in the dead of winter.
Get an answer from Travelodge Big Bear Lake CA staff and past guests.