May, June and early July are the best times to dive Socorro Island. Scientists tell us that there is at least 20% more biomass in the islands during this time and it is when we see the most mantas, pelagic fish and the largest number of sharks of the year. This is also when we get the nicest sea conditions of the year. While hurricane season at Socorro Island does not really begin until the middle of July, there is a chance of a tropical storm sometime in June.

It is rare for any of our Guadalupe Island great white shark trips to be affected by a tropical storm or hurricane but it does happen occasionally.

However, Mother Ocean doesn’t always respect “the rules” and a storm may affect your trip. For this reason, we have developed a 2 tiered program to protect your valuable vacation time.


  1. We highly recommend the purchase of Dive Assure travel insurance from our website. Dive Assure provides superb insurance covering not just named weather events but mechanical breakdowns, cancelled flights, trip interruption because another diver has a medical emergency, etc. Please read the information on your policy for a full understanding of the coverage. We will help defray the cost of this insurance by issuing a $100 onboard credit to anyone who purchases a Dive Assure policy from our website. The cost of a typical policy is $225. Click here to purchase. Please note that this insurance cannot be purchased last minute after a weather event has been “named”.
  2. Alternatively, storm credits will be issued to guests whose trips are affected by either a named weather event or a mechanical breakdown AND who do not receive compensation from their travel insurance carrier. Guests will automatically receive a storm credit voucher that can be used towards a future trip with a credit equal to the number of “charter days” that were lost. This program is not intended to be a replacement for Dive Assure travel insurance and we highly recommend that all guests purchase “Dive Assure.”


Our ships operate to the highest levels of professionalism and your safety will never be compromised. The Nautilus Explorer, Nautilus Belle Amie, and Nautilus UnderSea were built to ISM standards and are certified and audited by Overseas Marine Certification Services. See our certificates here. All three ships are equipped with state of the art VSAT open ocean satellite systems providing 24 hour data and internet connectivity. You can be assured that our shoreside duty officer will be in close communication with Captain Mike monitoring conditions and watching for potential problems.