Field notes · method · seasonal guides
The blog.
Long-form notes on why the seasonal data looks the way it does — the methodology behind each score, essays on why timing is the overlooked variable, and month-by-month guides for the big species.
Latest · Apr 21, 2026
We scored 28 of the world's best dives across every month. Here's what the data reveals.
A month-by-month seasonal score for every destination on WhenToDive. The aggregate pattern is more uneven than most trip planners assume.