To new divers I always recommend the following 5 specialties (in order of importance):
1) Peak Performance buoyancy (done well ... with obstacles ... and proper trimming ... and breathing)
2) Peak Performance buoyancy (done well ... with obstacles ... and proper trimming ... and breathing)
3) Peak Performance buoyancy (done well ... with obstacles ... and proper trimming ... and breathing)
4) Peak Performance buoyancy (done well ... with obstacles ... and proper trimming ... and breathing)
5) Underwater Navigation
1) Peak Performance buoyancy (done well ... with obstacles ... and proper trimming ... and breathing)
2) Peak Performance buoyancy (done well ... with obstacles ... and proper trimming ... and breathing)
3) Peak Performance buoyancy (done well ... with obstacles ... and proper trimming ... and breathing)
4) Peak Performance buoyancy (done well ... with obstacles ... and proper trimming ... and breathing)
5) Underwater Navigation