Ko Olina Beach Lagoons, Kapolei

Ko Olina Beach, or KoOlina Beach, is a pleasant place to go for a swim with your kids. The water is calm and it's nice to play and build sand castles on the shore. The are four perfectly-symmetrical lagoons- the first one is the largest. Grass-shack shade umbrellas dot the sand and there's wonderful shade under the trees on the fairy grass by the beach. There are lovely views of the Makaha coast if you look north from the grassy hills above Lagoon #1. Each lagoon has a rock wall to shelter swimmers from the waves. 

Like in Waikiki, the weather on this side of the island is generally better than it is in other spots, so it's a good place to come when it's raining everywhere else. Even though this resort is kind of "in the middle of nowhere," it's pleasant. Come early because the parking fills up fast.
Lagoon #1 is the most busy and has the Disney resort on it, plus a wedding chapel, and some kids games like ping pong. The other lagoons also have hotels, set further back from the beach. 
There is a shopping area with a Starbucks and some gift shops. You can walk seven minutes under rows of trees on Olani Street to get to it from Lagoon #1. 
Ko Olina Beach Boardwalk runs along all four lagoons, ending at a marina. It's a great place to go for a walk or run. If you start at the shops, it is a 1.5 mile walk along Olani Street, then the boardwalk past the four lagoons, to the marina. 
At the shopping area, you can eat at Mekiko Cantina or Eggs n Things, or shop at Island Country Market, which is like an ABC store. 
Or, have a healthy bowl with rice, steak, candied ginger, and purple sweet potato at HI Steaks in Foodland Farms Market at KMA Mall. This is a fifteen minute drive away.

Directions

Ko Olina Resort is located at 92-1480 Aliinui Drive, Kapolei HI 96707. Follow the H1 Freeway toward Waianae. You will see signs to Ko Olina. Once you enter the resort, take any of the side streets marked with signs such as "Lagoon #2." At the end of the street there is a public parking area marked "shoreline park users parking." Parking is very limited so you have to come early to get a spot. When you reach the guard gate, you don't have to stop- you can just wave and drive through. 
There are clean restrooms.
There is also parking at the shopping area where Starbucks is located, but you have to be going to one of the stores to park there. 
There is a small fee to park.

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