Even seasoned surfers riding the waves of the Kamakura waters were surprised to find that over the past few days, the familiar sea had been colored red during the day and a haunting blue after sunset. This natural phenomenon, which often occurs with high concentrations of plankton and warm waters, has since made the already popular destination busy with spectators deep into the night.

Although red tide is known to reduce nutrients in the water, and is thus potentially hazardous to marine life, the bioluminescence it exhibits when dark makes it almost difficult to imagine that it could do such harm to the ocean creatures.

Fortunately for those who weren't able to pay a visit to see this mesmerizingly eerie transformation of the sea, professional photographers and curious locals alike were quick to catch these moments of wonder on camera:

By - grape Japan editorial staff.