Second Phase, the combat diving phase, lasts seven weeks. This phase introduces underwater skills that are unique to Navy SEALs. During this phase, candidates become basic combat swimmers and learn open and closed-circuit diving.
Successful Second Phase candidates demonstrate a high level of comfort in the water and the ability to perform in stressful and often uncomfortable environments. candidates who are not completely comfortable in the water often struggle to succeed.
| Read more about swim training on the SEAL + SWCC Training Forum.