The Bizzy Blue Hole event plans to use a fuill day to get as many freedivers through the arch as possible.
It is an extreme dive - so far only managed by top level freedivers. It has been done breast stroke on only one breath. The easier way would be to go VWT with weights down, swim the tunnel, following a rope, and ascend along a rope where you will be met by safetydivers. A mentally strong freediver that can do 70 meter CWT might be able to do it.

Choose your skill level: 1. CNF 2. CWT 3. FIM - CNF - CNF 4. FIM - CNF - FIM 5. CNF - CNF - FIM 6. FIM - CWT - CWT 7. FIM - CWT - FIM 8. VWT - CNF - CNF 9. VWT - CWT - CWT 10. VWT - CNF - FIM 11. VWT - CWT - FIM 12. APNEA SCOOTER 13. SCUBA 14. SCUBA- SCOOTER