Loren LoRosa shared a 'positive note' about the Jendo Miracle in South Korea, where a sea opens for one hour twice a year, allowing people to walk between islands. This phenomenon occurs in spring and autumn.
Impact: Low. This fascinating natural event serves as a unique travel attraction and a point of wonder, highlighting the diverse and surprising aspects of the natural world.
In the source video, this keypoint occurs from 01:37:39 to 01:38:12.
Sources in support: Tanya (Caller)

