Drag with either mouse button to look. W / S fly forward and back in the direction you face; A / D strafe. Arrow keys also work.

E ascend · Q descend · Shift fly faster (24 m/s instead of 6 m/s). Scroll to move along your view.

Free flight has no terrain collision or automatic height adjustment.

Space pause water · C viewpoint · H interface

On touch screens, drag to look and use the movement pad, including Up and Down.

CUDA WebShader port of coastal-simulation by iamtechartist. Port source and credits.