South Shore

Ala Moana Beach Park/Magic Island — The water may not be as clear as in days past, but that hasn't thinned the crowds. Ala Moana Beach and its sidekick Magic Island remain the preferred beach spots for townies. It's a gathering place for runners, paddlers, swimmers and everyone else — before, during and after the workday.

Tip: Parking is ample here, in the parking lot on the Magic Island side (east end), or along the road running through the park. On weekends, arrive early (before 10 a.m. is best) — since parking spaces fill quickly.

Windward

Lanikai — The clear aqua blue waters make the lack of facilities worth it. Parking is a commodity here — you'll need to find a space in the neighborhood along Mokulua Drive.

Tip: There are no shower facilities here. If you need to shower, take along a couple of empty gallon-sized milk containers with water so you can rinse off the saltwater and sand before hopping into your car.

Waimanalo — In days gone by, families would fire up the hibachi at this beach and the smell of barbecue meat filled the air — along with the "earthy" scent of the nearby pig farm. Not a lot has changed, and this beach is still as beautiful and a great place for families.

Tip: The Windward side is notorious for Portuguese Man-of-War invasions. If no lifeguard is on duty and no signs are posted, look at the debris line and check for the jelly-like creatures before entering the water. And the best cure for a jellyfish sting? Rinse the area with seawater or fresh water to remove any tentacles.

Kailua Beach Park — With the finest, softest, whitest sand on O'ahu, this beach boasts waters that are a deep turquoise blue. The waves are perfect for body boarding, body surfing, windsurfing and kayaking.

Tip: Just before the beach park entrance, rent a kayak and paddle to the three small islands. It takes about a half hour to reach the first island, depending on conditions. Make sure you land the kayak on the island's south side, since the waves are treacherous on the north side and the rocks are sharp.

North Shore

Ali'i Beach Park — "Baywatch Hawai'i" did a great deal of filming here, at what is also known as "Royal Beach." This is the only beach on the North Shore suitable for swimming, but be careful in the winter since the waves do get big. The beach is not designated on some maps, but it's relatively easy to find. After you stop off at Aoki's or Matsumoto's for shave ice, continue driving through Haleiwa town until there are no more stores. Turn left on Haleiwa Road, and left on Nalimu Road into the parking lot.

Tip: The best spot for swimming here is the small, protected bay on the south side of the beach. This is generally a great swimming beach when it's calm and the conditions are right. There are sharp coral and rocks near the shallow reef area.

West Shore

Pokai Bay Beach Park — This beach is named after the legendary Hawaiian chief, "Poka'i," meaning "Night of the Supreme One." Pok'ai reportedly brought the first coconut tree to Hawai'i. Since this beach is well protected and has a gently sloping coral reef, it is great for swimming year round.

Tip: Be sure to watch out especially for heavy boat traffic (and occasional outrigger canoes). Otherwise, this is a great beach for families. This beach park is in the driest area of O'ahu, so drink plenty of fluids.

Ko Olina — These four manmade lagoons offer crystal-clear water, since fresh water flows through from an opening. The sand is nice and there are many grassy areas for picnicking.