Welcome from Texas!
I have fond memories of a vacation in Oahu and renting a Honda, riding around the gorgeous island twice and getting 7 tickets! [cop said go home and dont come back!]
Stayed in Waikiki and visited Diamondhead, Hanauma Bay [great snorkling], Waimea Falls [cliff diving] and North Shore - Sunset Beach [waves so big, afraid to swim there!]
What a beautiful Island.