IZU PeninsulaAn independent English guide to the Izu Peninsula

Home › Do

Hirizo Beach: Izu's boat-only snorkelling cove

Do · Minami-Izu · Originally covered on this site in 2017 (in Japanese); rewritten in English and updated 2026-10-24.

A rocky cove near Cape Irozaki reached only by a five-minute boat ride from Nakagi in summer, with some of the clearest water in Izu.

Access
boat from Nakagi port, about 5 min, summer only
Facilities
none on the beach

Hirizo Beach (Hirizo-hama) is a rocky cove on the coast of Minami-Izu that you cannot reach on foot. In summer, small boats shuttle from the harbour at Nakagi to the beach in about five minutes, and the water in the cove is so clear that you can see the seabed several metres down. It is the best-known snorkelling spot on the peninsula.

Season and boats

The boats run only in summer. One guide gives early July to late September, daily from 8:30 to 16:30 (16:00 in September); reported round-trip fares are around ¥1,500 for adults, with parking around ¥1,000 per car. Entry can be restricted at the peak of August, and people queue early for parking and boats. Check the Nakagi tourism site or Minami-Izu town before you go.

What to bring

For easier family beaches, see our beginner's guide to south Izu beaches; for other rocky coves, the advanced guide.

More in Do

Do · Izu Peninsula

Getting to the Izu Peninsula from Tokyo: trains, buses and driving

The Odoriko and Saphir Odoriko limited expresses, the Shinkansen to Atami or Mishima, and how to get around once you arrive.

Do · Minami-Izu

Cape Irozaki and the Irozaki sightseeing cruise

Izu's southern tip: a lighthouse, a shrine built into the cliff, and short boat trips past sea stacks and caves.

Do · Shimoda

South Izu beaches, part 1: easy sandy beaches for families

Long white-sand beaches with lifeguards, showers and parking: Shirahama Ohama, Kisami Ohama, Tatadohama, Yumigahama and Imaihama.

Part of our trip guide

Coast, beaches and volcanoes

Lava cliffs, sea caves, white-sand beaches and the volcanic landscapes of the Izu Peninsula Geopark.

See · Nishi-Izu

Nishi-Izu by bus: Dogashima's sea caves, Koganezaki's golden cliffs and Matsuzaki

Izu's quiet west coast: boat trips into Tensodo cave, the tombolo at low tide, sunset at Cape Koganezaki and the old merchant town of Matsuzaki, with bus times from Shuzenji.

Do · Izu Peninsula

Izu Peninsula Geopark: five easy volcanic sites to see in a day or two

A UNESCO Global Geopark since 2018: Mount Omuro, the Jogasaki coast, Joren Falls, the Ryugu sea cave and Dogashima, with what to look for at each.

Do · Izu Peninsula

The Izu Peninsula Geopark for beginners: a volcanic island that crashed into Japan

How a chain of undersea volcanoes drifted north and joined Honshu, and where to see the evidence on the ground.