The whole peninsula has excellent beaches and water sport options. The east side is a bit busier but has more public transportation connections compared to the south and west coasts. 

Mid-August is informally considered the end of the swimming season in Japan due to the arrival of stinging jellyfish in some areas.  Check the local conditions.

Swimming / sunbathing beaches

The whole peninsula has excellent beaches and water sport options. The east side is a bit busier but has more public transportation connections compared to the south and west coasts. 

Mid-August is informally considered the end of the swimming season in Japan due to the arrival of stinging jellyfish in some areas.  Check the local conditions.

Swimming / sunbathing beaches

There are beaches all around the peninsula but they vary dramatically.  Shirahama, for example, is right next to one of the main roads and has a train station nearby.  Not only is it easy to get to, it is quite large and is a sand beach.  On the other hand, there are other beaches in Izu that are completely rocky and are only accessible by a small ferry boat during the summer.  Check ahead before making plans.

Almost all of the main beaches have places to get food, rental shops, and washrooms close by.  In the summer peak season expect to pay for parking. In the offseason you can expect some of the beach-side businesses to shut down.

Yumigahama on the south coast.

The more popular / better swimming beaches are listed in clockwise order below:

East Izu peninsula

South Izu peninsula

  • Iritahama beach A medium size beach south of Shimoda
  • Kujuppama Beach It is a bit out of the way and is tougher to get to by public transportation
  • Tatadohama Beach This is a good sized sandy beach.
  • Kisami Ohama beach A medium-size beach not far from to Shimoda station.
  • Yumigahama This is the second-longest sand beach on the peninsula.
  • Hirizo beach. The beach is a bit small and rocky but it has excellent snorkelling.  There are fewer amenities close to the beach compared to others.  

West Izu peninsula

  • Yagawa Beach You need to take ferry to get here and you need to bring food / drinks etc. with you. The website is in Japanese
  • Mera Athletics Water Park.  This is a great spot for families. 
  • Kumomi BeachThis is a better beach for family as it is located in small cove and the waters are quite calm.  There are not than many stores in the area compared to other beaches
  • Norihama beach This sandy beach is just south of Dogashima. It is fairly small but has great views of the stone formations just off the coast.
  • Futo Beach is a cove that keeps the water fairly calm.  It is a rocky beach.
  • Tagosehama beach  This is a small, rocky beach north of Dogashima
  • Koganezaki beach Thisis a small, rocky beach north with good snorkeling.
  • Crystal beach This is the longest sandy beach on the west coast.  The water is not very rough and there is camping nearby.
  • Mihama beach This is is tucked into the inside of a protective cove and the water are probably the calmest of almost anywhere on the peninsula.  You can see Mount Fuji is the weather cooperates.
  • Ose beach This is a popular beach and a lot of people come here for snorkeling and scuba diving. Mount Fuji is visible in good weather
  • La La La Sun Beach is a man-made beach with calm waters.  You can also see Mount Fuji at times.

Surfing / bodyboarding

The surfing scene is based in / around Shimoda, especially Shirahama Beach. There is surfing information in English here and here.  Another option that isn’t quite as busy is Yumigahama.

Snorkeling

Izu is an excellent place for snorkeling.  Hirizo beach is one of the best in the whole region.  Here is a list running clockwise around the peninsula. 

Scuba diving 

The Izu peninsula is an excellent destination for scuba diving.  Mid-summer to around November is the high season.

Diving in the off-season (with a dry suit during the cooler times) is in some ways better.  Outside of the peak summer season the number of visitors to the peninsula drops dramatically (Golden Week in April-May also very busy) and the visibility improves. 

Some of the more popular scuba diving locations are listed in clockwise order below.