海の日 umi no hi, sea day is a national holiday in Japan celebrated every third monday of July. Umi no Hi is celebrating the return of the Meiji Emperors return from Hokkaido, also this day was named to give appreciation to the ocean for everything it provides people and because Japan is an island nation the sea is very representative of them. Locals take this day to go to the ocean usually, since its celebrated in July the beaches are bomb and the weather in humid as hell! In some places in Japan umi no hi is celebrated by rowing boats decorated with lanterns and paper kite fish into the ocean.
There are many aspects to Japan's culture that make the Japanese respectful of the environment. Holidays like Ocean Day reflect the morals and mentally of Japan as a nation; having a day that apperciates the ocean for providing food, surrounding their country, and for fun.