Isles of Shoals Swim Qualifications

Preparing for a 7-mile ocean swim in 60°F (15.5°C) water is a significant undertaking that moves into the realm of "marathon swimming." At this distance and temperature, qualifications are not just about speed, but about cold-water endurance and safety.

Endurance Requirements

• Distance Proficiency: Can comfortably complete 10k (6.2 miles) in a pool or calm open water. Have completed at least one 2-3 hour continuous swim in the past year.

• Pace Standard: Able to maintain a pace of at least 1 mile per 35 minutes.

Cold Water Acclimatization

• The "60-Minute Rule":  Have experience swimming for at least 60–90 minutes in water 60°F or below without showing signs of moderate hypothermia.

• Cold Shock Management: Have trained to control the "gasp reflex" upon entry. 

Logistics

• Feeding Protocol: Solo swimmers must have a practiced "feeding" plan (liquid nutrition/gels) that can be executed every 30–45 minutes without touching the support boat.