What Are Miyakojima's Beaches Like, and Where Can You Safely Swim?

Published 2026-10-04 · Sources checked 2026-10-04 · Treasure Hunting Co., Ltd.

This guide is for visitors who want to know what Miyakojima's beaches are like before they go into the water. The most important point comes from the city itself: most of the island's coast is not an official swimming beach.

We used the website of Miyakojima City and the official Okinawa travel site run by the Okinawa Convention & Visitors Bureau (OCVB). All pages were read on 2026-10-04. Beach facilities change by season, so check on the day.

Most coasts are not official swimming beaches

Miyakojima City's beach page lists the island's best-known coasts. Then it adds a clear warning. The city says many of these unspoiled coasts are not designated swimming beaches.

Because of this, the city says any water accident is the user's own responsibility. It asks visitors to watch for dangerous sea life, deep water and currents. It also asks people to behave with restraint, to protect the natural environment and existing facilities.

OCVB gives the same advice for all of Okinawa. Swim only in designated swimming areas, and follow the lifeguards. Outside those areas, tides can change a lot and currents can be strong.

Beaches the city describes

These are the coasts on the city's page, with what the city says about each. Being on this list does not mean a beach has lifeguards or a jellyfish net.

• Yonaha Maehama. A white sand beach about 7 kilometers long. It is also the start of the yearly Miyakojima triathlon.
• Painagama. About five minutes by car from the town center. The city notes that many local people use it.
• Sunayama. You cross a sand hill to reach it. A rock arch on the beach is one of the best-known coastal views in Okinawa.
• Aragusuku coast. You can see tropical fish and coral in the shallow water close to the sand.
• Yoshino coast. It has a large lagoon, and the city says it is known for the number and variety of tropical fish.
• Boraga. It has a man-made pool fed by natural spring water. It has become popular as a sea kayak spot.
• Sawada no Hama on Irabu Island. At low tide the water goes far out and shows a wide rock shelf. You can also see old stone fish traps.
• Toguchi no Hama on Irabu Island. A beach of fine white sand that is usually quiet.

Beaches with special warnings

OCVB gives warnings for some places on the smaller islands. On Shimoji Island, the beach at the north end of the airport runway, known as "17END", is a sunset spot. Swimming is prohibited there.

On Ikema Island, OCVB says Funakusu and Ikizu beaches have no facilities or lifeguards. It asks visitors to be careful, especially when going into the water.

Yabiji, the reef that appears once a year

Yabiji is a group of more than 130 coral reefs about 15 kilometers north of Miyako Island, according to the city. Once a year, at the big spring tides of the third month of the old lunar calendar, most of it rises above the sea. People call it the "phantom continent".

OCVB says Yabiji has some of the best snorkeling in Okinawa. It counts around 100 coral reef formations there, a lower figure than the city's. It is far from the shore, so ask a licensed operator how to visit.

How to protect the reef

OCVB lists simple rules for the reef. Avoid swimming at low tide, to protect the coral and yourself. Do not feed the fish. Do not go out into the open sea beyond the edge of the reef.

The water beyond the reef edge is deep, and OCVB says tides and currents there can change quickly. Rip currents can be 10 to 30 meters wide and move at up to 2 meters per second. If one catches you, swim parallel to the shore.

When the sea is warm enough

OCVB says many of Okinawa's popular resort beaches open for swimming in March. Average sea temperature ranges from about 21°C in February to nearly 30°C in August.

Miyakojima City gives an average yearly temperature of 23°C and humidity of about 80%. The sun is strong, so OCVB suggests sunscreen, a hat and a rash guard when swimming.

What we could not verify, and therefore left out

• Which Miyakojima beaches have lifeguards or jellyfish nets this season. OCVB's beach database did not list them when we checked.
• Opening dates of swimming areas for 2026 or 2027.
• Parking, shower and toilet details for each beach.
• The dates of the spring tides that expose Yabiji in 2027.

Related guides

• How do you get to Miyakojima and around its bridged islands?
• How do you stay safe in the sea and in typhoons around Miyakojima?

Sources

All URLs retrieved 2026-10-04.

1. Beaches and marine leisure (Miyakojima City, in Japanese) — (beach list; most coasts are not swimming beaches; Yabiji)
2. Enjoying Okinawa Safely - VISIT OKINAWA JAPAN (Okinawa Convention & Visitors Bureau) — (designated swimming areas; reef rules; rip currents; sun)
3. Shimoji Island - VISIT OKINAWA JAPAN — (17END; swimming prohibited)
4. Ikema Island - VISIT OKINAWA JAPAN — (Yabiji snorkeling; beaches without lifeguards)
5. When to Visit - Okinawa's Climate & Seasons - VISIT OKINAWA JAPAN — (beaches open in March; sea temperatures)
6. Outline of Miyakojima City (Miyakojima City, in Japanese) — (average temperature and humidity)