+31 6 4856 0245
- GUE instructor at 'Dive Solutions'
- Pilot Diver for JFD Ortega Submersibles
- Author in Dutch dive Magazine 'Duiken'
- Teacher in physical education.
- GUE Instructor: Rec 1, Rec 2, Rec 3, Fundamentals, DPV1, Gasblender, Primers and Tech 1
- PADI Instructor
- IANTD Instructor
- Cave diver
- Sander is diving since 2001 all over the world, cold and warm, cave, technical and open water.
- Project leader for 'Historical Shipwrecks port of Rotterdam' in Oostvoorsemeer in the Netherlands.
- Freelance author for Dutch magazine 'Duiken'.