Honestly pretty much anything is within an hour and a half drive in Oahu. It’s a pretty small island! My husband and I stayed at Aulani for a 10 day trip but still did plenty of exploring (including going to waikiki to walk around and dine). We personally didn’t find driving to get to Waikiki or anywhere else a big problem and LOVED Aulani. It’s a beautiful resort and we are so looking forward to going back some day soon!
Go early to avoid and parking issues and you’ll be in no rush to get back, shower, check out, and get back to the airport.