South of Waikiki near Diamond Head on Oahu, the snorkeling at Kapiolani Park Beach is known for the easy access reef off the Waikiki Aquarium. This snorkeling dive site is part of the Waikiki Marine Life Conservation District. The water visibility is average at best, and poor if windy. While snorkeling at Kapiolani Bath, you may encounter moorish idols, angelfish, wrasse and parrotfish.
For the best snorkeling at Kapiolani Park Beach, try for a windless day with low surf and no rain on the days prior.
For snorkeling at Kapiolani Park Beach, there is street parking on Kalakawa Avenue.
After a long day of Kapiolani snorkeling, grab a cool drink at the La Mariana Tiki Bar in Waikiki. To reach the best snorkeling on Oahu by air, you will need to fly into Honolulu International Airport (HNL) which is located just on the west side of Honolulu. There are direct flights into Honolulu from the US, Australia, New Zealand, American Samoa, Tahiti, Japan and Fiji. In addition, there are inter-island flights to all the main Hawaiian Islands. There is good snorkeling on Oahu year-round. But, the conditions very around the island depending upon time of year due to winds and currents. The north shore snorkeling dives are best from June through September and are usually closed out the rest of the year due to high surf. The south shore dive sites are best from November through May. The main exception is Hanauma Bay, which tends to be good year-round since it is very protected.
Overall, Kapiolani Park Beach is the 11th most popular snorkel dive spot of all 23 snorkeling dives in Oahu.