Daniel Sommer
- Explorer-Hollis Level1
- Gasblender
- Instructor
- OC-Advanced Trimix-Diver
- OC-Advanced-Nitrox-Open-Water-Diver
- OC-DPV
- OC-Deco-Diver
- OC-Drysuit
- OC-Extended Range-Diver
- OC-Full-Face-Mask
- OC-Nitrox-Diver
- OC-Recreational Trimix-Diver
- OW-Nitrox Diver