California offers world-class diving year-round, but conditions change dramatically from month to month. Water temperature, visibility, swell, wind, and fish activity all follow seasonal patterns that can make or break a dive. Whether you're planning a kelp forest dive at La Jolla, a bluewater trip to the Channel Islands, or a halibut hunt on a sandy bottom, timing matters. This guide is built on real data — 7 years of CDFW catch records, NOAA ocean sensor data, and hundreds

Bluefine Tuna

we built the SpearFactor Dive Conditions Tool — one page, 33 dive spots across all of California, everything you need to know

How to care for your tuna. Imagine catching or spearing the fish of a lifetime only to have the flesh ruin due to improper care.