Boulder is just about as far in the USA as you can get from either ocean. Nonetheless, Coloradans crave fresh seafood as much as anyone, and those in the know come to Jax's to get it. From caviar to crawfish, this place has it all, most of the rotating menu items are good, and some are truly great.
The energy is great, it's often crowded and the decor is nautically themed. Happy hour can get a bit congested, but the affordably priced and delicious oysters of several varieties make the wait and lack of personal space well worthwhile. If you're with a group and not all of you fancy fish, shellfish or mollusks, there is also meat on offer.
Ask your server what's best at that time of year. The menu is always adapting, but certain catches are particularly fresh and not to be missed.