www.tsuruokacity.com · Official Tourism
Official Tsuruoka summer tourism context for the local seasonal travel window.
Yotsushima Jetty
Summer jetty dive in Yotsushima with fish-rich reefs.
Scuba DivingBoatBeginner8m - 12m
Artificial reefReef
A summer-only jetty dive off Tsuruoka with boat access, harbor facilities and abundant reef fish around the Four Islands.
About Yotsushima Jetty
Yotsushima Jetty is a rare jetty-style island dive off Tsuruoka's Four Islands, reached by ferry-pier boat transfer and a short ride to the site. The reefs around Ruzaoan Island hold large schools of fish and lively small-life scenes, and the dive operates only in the summer season from July through October. Harbor parking and flush toilets make it a practical day-trip setup.
Safety & Access
Site Conditions
Boat trafficRestricted access
Safety Notes
Watch ferry traffic near the pier, respect the seasonal window and keep a tidy profile around the jetty structure.
Access Restrictions
The site is open only from July through October.
Legal Notes
Use the ferry-pier access and follow local harbor rules during the seasonal operating window.
Where Is Yotsushima Jetty?
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Local Intel For Yotsushima Jetty
Community notes to help plan your visit.
Scuba Diving
A shallow jetty-style reef dive with steady terrain and good opportunities for wide-angle and macro viewing.
Freediving
The shallow profile may suit experienced freedivers on calm days, but the site is more naturally a scuba jetty dive.
Snorkeling
A calm-day snorkel can work near the surface, but the richest fish life is better appreciated on scuba.
Wildlife at Yotsushima Jetty
Species commonly reported at this site, with direct links into their wildlife guides.
Research Estimate At Yotsushima Jetty
Access · 4/5Simple entry
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Aquatic Life · 5/5Exceptional variety
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Facilities · 5/5Excellent facilities
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Crowd / Popularity · 4/5Quite busy
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Current · 1/5No current
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Surge · 1/5Flat calm
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