NagiFreediving · Japan

Journal

Notes from the blue

2026-08-05

Getting AIDA2 Certified in Japan: The Complete Beginner's Guide

Requirements, course flow, seasons and the two most common failure points — everything you need to know about earning your first freediving certification in Japan.

2026-08-04

Freediving in Okinawa: Sites, Seasons and Practical Tips

How to dive Cape Maeda, when the Blue Cave is actually empty, whether winter is worth it, and the hammerheads of Yonaguni — an Okinawa guide written for freedivers.

2026-08-03

Freediving in Izu: Tokyo's Two-Hour Blue Escape

Why Osezaki is the best training bay in eastern Japan, when the water is clearest, how to get there, and which onsen to soak in afterward.