Diamond Head Crater Trailhead
Hiking area
Kapahulu, Honolulu, HI 96815
Extinct volcano is a popular hiking destination with a rugged trail leading to panoramic views.

Background: generated illustration, not a photograph of this location.
Guide to the closed Toilet Bowl on Oahu. Includes safety info, directions to Hanauma Bay, and alternative snorkeling spots in Waikiki.
Location
This is a desk-researched listing. A record update or map check does not confirm current swimming permission or water conditions.
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Tucked along Oahu's dramatic southeastern shoreline, the area surrounding Hanauma Bay is one of Hawaii's most storied coastal landscapes. Carved over millennia by volcanic activity and relentless Pacific surf, the rugged lava benches here tell a geological story that predates human memory. Among the most talked-about features of this coastline was a remarkable natural formation known as the Toilet Bowl — a small, oval pool cut directly into the dark volcanic rock, where the ocean would surge in and out with hypnotic, sometimes violent force.
Standing at the edge of this formation, you're confronted with the raw power of the Pacific. The lava rock underfoot is sharp and uneven, shaped by ancient eruptions and weathered by salt and time. The surrounding coastline is visually arresting — black rock meeting turquoise water, with sea spray catching the light on a bright Hawaiian morning. The broader Hanauma Bay State Park area is rich with marine and bird life, and the dramatic cliffs and coastal outcroppings offer photographic opportunities at nearly every turn. You'll hear the ocean before you see the pool itself: a rhythmic rush and whoosh as water floods the bowl and then drains away, creating the flushing motion that earned the site its unforgettable name.
It's essential to be upfront with visitors: the Toilet Bowl is currently closed due to safety concerns, and access is not permitted. Even historically, this was a site exclusively for highly experienced swimmers and adventurers. The dynamic water surges that made it thrilling were also what made it genuinely dangerous — the inward rush of ocean water could be powerful enough to sweep a swimmer off their feet, and the drain effect that followed was equally forceful. Water clarity in the surrounding bay area is generally excellent given the volcanic basin environment, but the Toilet Bowl itself offered little in the way of calm, controlled swimming. This is emphatically not a destination for casual swimmers, children, or anyone without significant open-water experience. Always check local ocean forecasts before visiting any part of this coastline — summer months from June through August typically bring calmer conditions, while winter swells from November through February can be dramatic and hazardous.
The Toilet Bowl sits within the Hanauma Bay area on Oahu's southeastern shore, making Honolulu the natural base for any visit to this part of the island. Honolulu offers a full range of accommodations, dining, and services, and is roughly a short drive from the Hanauma Bay State Park entrance. Facilities at the specific Oahu Area 3 coastal sites are not confirmed, so come prepared with water, sun protection, and appropriate footwear for lava rock terrain. Fee information varies by specific access point, so check with local park authorities before you go. Given the current closure of the Toilet Bowl itself, visitors drawn to this stretch of coastline are encouraged to explore the broader Hanauma Bay State Park, which offers its own world-class natural beauty and protected marine environment. Respect all posted closures — this coastline rewards patience and preparation, not recklessness.
Directions to Oahu Area 3 Places - Toilet Bowl (Note: Closed Indefinitely as of March 2009)
Important Note: The Toilet Bowl swimming hole has been closed indefinitely since March 2009 due to safety concerns caused by rock collapses around the rim. Visitors are strongly advised not to attempt accessing this location. The following directions are provided for informational purposes only.
Driving Directions from Honolulu:
Parking and Trail Information: - Parking: Hanauma Bay State Park has a designated parking lot for visitors. However, parking can fill up quickly, especially during peak hours, so plan to arrive early. Note that there is an entrance fee for the park, and parking fees may also apply. - Trailhead: Once parked, proceed to the main bay area. As you look out toward the ocean from the bay, walk along the coastline to your left. - Final Approach: Continue walking around the point to the left until you reach a small gorge carved out of lava rock. This is the location of the Toilet Bowl.
Additional Notes: - The Toilet Bowl is a natural lava rock formation where ocean waves surge into and out of a small, oval-shaped pool. However, due to the closure and safety risks, it is not recommended to attempt entering this area. - For safer snorkeling options, consider staying in Waikiki and exploring the snorkeling areas near the rock jetty at Queen’s Beach, where you can still enjoy a variety of marine life in a more accessible and controlled environment.
Please prioritize your safety and respect all closures and warnings when visiting natural sites.
The Toilet Bowl is CLOSED INDEFINITELY due to hazardous rock collapses. Hanauma Bay State Park is open but requires an entrance fee and has limited parking that fills quickly. Always check official park websites for the latest hours, fees, and conditions before visiting.
Confirm the entrance, parking arrangements, and legal access with the land manager. A map pin does not establish a public right of access. Follow posted routes and never block gates or driveways.
Current swimming permission has not been independently confirmed for this listing. Check official rules, fees, hours, and closures before visiting. Public park access does not necessarily include permission to swim. Respect private property and posted restrictions.
Water conditions can change quickly. This listing does not provide a current safety or water-quality assessment. Check official alerts and avoid entering water when conditions or permission are uncertain.
Bring sturdy water shoes to protect your feet on rocks and slippery surfaces. A waterproof dry bag keeps your phone, keys, and valuables safe. Pack a quick-dry towel, sun protection, and drinking water - never drink from the natural water source.
Nearby places from saved public map data, not necessarily facilities at the swimming spot. Confirm access, hours, fees, and amenities with the operator before you drive.
Map data retrieved 2026-06-15
Hiking area
Kapahulu, Honolulu, HI 96815
Extinct volcano is a popular hiking destination with a rugged trail leading to panoramic views.
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Public bathroom
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Checking nearby USGS water conditions…
Reported fee information: Varies - see below. Verify current pricing with the managing agency before your visit.
Current swimming permission has not been independently confirmed for Oahu Area3 Places. Public park access does not necessarily include permission to swim. Check with the land manager and follow posted restrictions.
Oahu Area3 Places is a varies - see below on Varies - See Below located in Hawaii, near Oahu - Honolulu. Guide to the closed Toilet Bowl on Oahu. Includes safety info, directions to Hanauma Bay, and alternative snorkeling spots in Waikiki.
Seasonal planning notes: Summer months (June to August) offer calmer ocean conditions, while winter (November to February) brings larger swells. Always check local forecasts. Water levels, clarity, and temperature vary with recent weather. Check current conditions before going, especially after rain or snowmelt.
Reported facilities at Oahu Area3 Places include: Facilities at Hanauma Bay State Park include restrooms, showers, and visitor amenities. None directly at the Toilet Bowl site due to closure. Amenities can change - contact the managing agency or check recent visitor reports to confirm current availability.
Located within Hanauma Bay, a site deeply valued in Hawaiian culture for its rich marine biodiversity and connection to the ocean.
Capture coastal views and the interplay of sunlight on water. Best times are early morning and sunset for dynamic lighting.
Respect closures and fragile ecosystems. Follow Leave No Trace principles to protect marine life and coastal vegetation.
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Use this safety guide before entering any natural water.
Safety & Access Notice
This information is for general planning only and may be incomplete, outdated, or inaccurate. Access rules, closures, water levels, currents, hazards, and legal restrictions can change at any time. Always verify current rules with the land manager or official source before visiting.
You are responsible for your own safety and for following all posted signs, laws, and local regulations. Read the full disclaimer.
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Safety & Access Notice
This information is for general planning only and may be incomplete, outdated, or inaccurate. Access rules, closures, water levels, currents, hazards, and legal restrictions can change at any time. Always verify current rules with the land manager or official source before visiting.
You are responsible for your own safety and for following all posted signs, laws, and local regulations. Read the full disclaimer.
Joshua Havens created Hidden Swimming Holes to make it easier for people to find — and safely visit — natural freshwater swimming destinations across the United States. He researches access conditions, water quality resources, and land management rules so you don't have to start from scratch. He holds a strong belief that good outdoor recreation information should be accurate, honest about its limitations, and freely available.
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