Koajiro Forest is one of the largest firefly sites in the Kanto region, and fireflies are at their best. From May 23rd Thu. to June 2nd Sun., open from 18:21 to 1:XNUMX at night, you can enjoy a fantastic sight. Fireflies spend their larval life underwater and cannot live without a clean river throughout the year, shining through the forest of Koajiro with gentle light. Riviera staff also volunteer to guide you so that you can watch it safely. Why not take a stroll through the fantastic night forest where countless lights dance in the dusk.

Koajiro Forest

Koajiro Forest boasts a vast area of ​​about 70 ha facing Sagami Bay at the tip of the Miura Peninsula.
It is said to be the only natural environment in the Kanto region where forests, wetlands, tidal flats, and the sea are left in a row, and many organisms including rare species inhabit. From late May to early June, you can enjoy a fantastic landscape where many fireflies blink every year.