Gorgeous place. The pictures don't do this place justice. Plenty of space for my wife, two high school teenagers and me. Our family enjoyed our entire 7-night stay at Ko Olina. Whatever you want to do, it's at your disposal in Ko Olina or nearby. Best place we have ever stayed at and we would love to return.
We laid around for a few days swimming early morning laps in the lap pool, lying quietly in late morning/early afternoon by the lap pool/quiet pool, swimming in the busier pool near the bar or hanging out swimming and snorkeling in the ocean lagoon. The lagoons are larger than they look in the pictures. Plenty of space to swim, snorkel, triathlon train or just lie around on the beach. If you want a cold refreshment, the bar is right at the security gate by the ocean and busy pool. Miles of of walking/jogging trails along the ocean and road back toward Ko Olina.
The North Shore was a 35-40 minute drive. Go early in the day after rush hour but well before lunch. Waimea Falls is worth the hike up there and the water is refreshing. Very historic area. Sunset Beach is spacious and the waves weren't as crazy as they are in winter. Lock your doors, leave no valuables visible in your vehicle. Recommend historic Haleiwah for browsing, food options and people watching. We had a huge portioned, tasty supper at the Grass Skirt.
2 recommendations: The 4 of us signed up for first-time-ever surfing lessons through Hawaiian Fire. This was perhaps the highlight of our trip. Friendly service and they pick you up right at the front desk. The lessons went great, all 4 of us were able to enjoy surfing success. Instructors were courteous, professional patient and the ocean views from the location of our lessons were second to none. Second, make time for a shopping trip to Aloha Stadium Marketplace (W, Sat and Sun) for t-shirts and whatever for friends and family back home. Decent t-shirts for 5/$20 and $10-15 for very large beach towels beating expensive Waikiki and overpriced ABC store items.
We cooked or grilled most of our meals (from Kapolei supermarkets) but Monkeypod was a cool place for a family meal plus Pizza Corner and Two Scoops were easy and fast options. Restaurants aplenty around the area resorts and in nearby Kapolei should you so choose.
Waikiki is still beautiful but overcrowded. Ko Olina was perfect for our family and we'd gladly return to this place again. Property manager, facility tour guide, bartenders all courteous and friendly.