finishing

First time poster long time tiki fan,I am currently building a tiki bar that will be remain outside in the Canadian climate. The bar will have a thatched roof and is made out of cedar, and is stained with a semi transparent stain. My question is what kind of finish would you recommend for the bar and would you recommend a different finish for the bar top and bamboo as opposed the the rest of the bar? A finish that i wouldn't have to do every year would be great. Pic to follow. Thanks in advance