Yuigahama is the most popular beach in Kanagawa Prefecture. By the way, at Yuigahama Beach, a mysterious phenomenon has been witnessed where a glowing blue light appears between the waves at night. The blue light is so beautiful that it was featured on TV and social media for a while.
So, what exactly is that blue light that shines between the waves at night? This time, we will introduce in detail the true nature of the blue light that shines in the waves at night in Yuigahama, Kanagawa Prefecture.
① Spectacular scenery created by noctiluca!! ︎A shining blue light appears in the sea at night!! ︎
At Yuigahama, under certain conditions, at night the white waves that hit the beach glow blue. It looks like fluorescent blue light is emitting from the sandy ground. It is a beautiful blue light that looks like the Milky Way appearing on the sea at night.
❶What is the true nature of the blue shining light?
The true identity of the shining blue light that can be seen at Yuigahama at night is “Noctiluca.” Noctiluca is a plankton that glows blue when stimulated. They are single-celled organisms with a diameter of approximately 1 mm, each shaped like a balloon. Since they are single-celled organisms, they cannot move on their own and float unsteadily in the ocean.
❷What causes Noctiluca to glow blue?
The reason why Noctiluca glows blue is because it has a substance inside its body that emits light, and it emits light when stimulated. There are two substances in Noctiluca’s body:
①Luciferin (a substance that emits light)
②Luciferase (enzyme that helps light emission)
Luciferase affects luciferin, causing oxidation and producing blue light.
When something hits Noctiluca, it oxidizes and glows blue. To summarize, the mechanism is that when waves approach, Noctiluca in the seawater collide with each other, causing oxidation and producing a glowing blue light.
❸When can we see the shining blue light?
Noctiluca can be observed at Yuigahama Beach from spring to summer, when the water temperature rises. You can also see days when there are consecutive sunny days, or days when the sea water temperature rises the day after it rains. The best time to see the blue light is from around May to September. However, because the occurrence situation differs from year to year, it cannot be seen in the same place every year.
②【Yuigahama】 A famous beach crowded with young people in the summer‼︎
Yuigahama is a beach located in Yuigahama, Kamakura City, Kanagawa Prefecture. It is generally famous as a beach. Yuigahama is the coastline directly south of Kamakura City Hall. It is located about a little over 1km away. The sandy beach is a shallow coast with a total length of about 890m and a depth of about 40m.
❶What is the original Yuigahama?
Yuigahama is a general term for a beach with a total length of 3.2km. Currently, the coast is divided into three parts across the Inase River and Namegawa River, each with a different name.
① Sakanoshita coast (west side of Inase River)
② Yuigahama Beach (between Inase River and Namegawa River)
③ Zaimokuza Coast (east side from Namegawa River)
❷What are the characteristics of Yuigahama Beach?
Yuigahama Beach is one of the largest beaches in Japan. The reason is that approximately 700,000 people visit during the business period from July to August every year. By the way, the number of visitors to the famous Zushi Beach is about 300,000 people a year, so that’s more than twice as many visitors. It’s characterized by a lot of young people, and it’s always lively and noisy no matter when you go during the season. There are many large beach huts, and there are many different types of beach huts. If you are going to the beach with a couple or young people, Yuigahama Beach is the most recommended.
The business hours of Yuigahama Beach are as follows.
① Business period: July 1st to August 31st
② Business hours: 09:00-17:00
❸ Breakdown of number of visitors to Yuigahama Beach
The number of visitors to Yuigahama Beach is basically a beach where there are many young people. The detailed breakdown is as follows.
① The male to female ratio is 5:5, exactly 50/50.
② Approximately 80% of all visitors were in their 20s to 30s
③Over 50% of the total are in their 20s
④Over 60% of visitors are from outside the prefecture
⑤ Approximately 25% of the total are families.
Approximately 80% are in their 20s to 30s
③Access information to Yuigahama
Here you will find detailed information about access to Yuigahama. The address of Yuigahama is “Yugahama, Kamakura City, Kanagawa Prefecture”.
❶Route from Kamakura City Hall to Yuigahama by car
Kamakura City Hall (18-10 Onaricho, Kamakura City, Kanagawa Prefecture) ⇒ Imakoji ⇒ Omachioji ⇒ Yuigahama Odori ⇒ Prefectural Route 311 ⇒ Wakamiya Oji ⇒ Prefectural Route 21 ⇒ Wadazuka Entrance ⇒ Yuigahama
The total travel distance is approximately 1.9 km, and the travel time is approximately 13 minutes.
Summary about Yuigahama & Noctiluca.
This time, we introduced the true nature of the blue light that shines in the waves at night in Yuigahama, Kanagawa Prefecture. Yuigahama in Kanagawa Prefecture is one of the largest beaches in Japan. Not only that, but if you’re lucky, it’s a spectacular spot where you can see the blue light shining between the waves at night. When you visit Kanagawa Prefecture, we highly recommend that you stop by Yuigahama Beach.
▲Official site
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