See, I'd love to go to Hawaii but mainly for the volcanos and tropical snow (in winter) on Big Island and the canyon in Kauai. If the vacation was just sitting around the beach in Waikiki, I'm not sure that trip would be for me either, although I suppose there's other things to see around Honolulu and Oahu (Lost shooting location touring, for example).
If Tanaka-kun had to go to Hawaii, I think he'd rather take Ohta instead of Rino.