so I ll be coming solo to Oahu early September and plan on staying there 6 nights before going to Kauai for another 4. I will be looking for meeting other people at my age (male late 20s), going to the beach/surfing, visiting some nice bars and seeing a bit the more rural areas of the island and maybe some kayaking/hiking if there is something really exciting.
So the question is, how many days should I spend in Oahu and how many should I wander around the island? I thought I could figure that out there but now I see it is getting a bit busy in the hostels so I want to book in advance. Moreoever, I want to rent a car but not for the whole time as I will not need it in Honolulu, so it would be nice to know the dates I ll stay there and plan ahead.
Any recommendations? Any ideas on which other areas I should visit and maybe of places to stay there (and in Honolulu).
Many thanks in advance.