— unpredictable thoughts

Guillaume Nery dives at Dean’s Blue Hole, the deepest blue hole in the world.

This video blows my mind.

This is an exam­ple of a par­tic­u­lar free­d­iv­ing dis­ci­pline defined as:

Con­stant Weight With­out Fins (CNF)
The free­d­iver descends and ascends under water using only his own mus­cle strenght, with­out the use of propul­sion equip­ment and with­out pulling on the rope. Con­stant weight with­out fins is the most dif­fi­cult sportive depth dis­ci­pline, because of absolutely no propuls­ing mate­r­ial to go down in the water. This cat­e­gory needs a per­fect coor­di­na­tion between propuls­ing mov­ments, equal­iza­tion, tech­nique and buoyancy.