My Godson had retinoblastoma and is now completely blind. He plays football alright and can ice skate.

Plenty of sports are still viable. Probably most. Traditional sports that might be tough for a VI like basketball or hockey have blind equivalents. Things like martial arts, skateboarding, hiking, surfing, mountain-climbing, even race-car driving, are also done by plenty of blind people. Try Googling to see if you can find a blind person that's done the sport you're interested in--I can 99% guarantee you you'll be able to find at least a couple for any sport.

Cycling.

You'll need a tandem and a sighted front rider. There are clubs organised around this.

Pedal as hard and as fast as you can, swoop down hills or whizz around a track. If you hit anything it is not your fault this time.

For the USA: http://bicyclingblind.org/clubs/find_club

For the UK: https://tandem-club.org.uk/files/information/disabled.html (doesn't list the Hull club)

Both lists above may be incomplete so further searching may find more.

Brazilian Jiu Jitsu is absolutely viable with visual impairment, as a large part of it is tactile in nature. See $1

It would really depend on what you can see, but I would guess most things involving a small ball at high speed would be difficult (like squash). Not sure about Jiu Jitsu, but I know someone who is total that does Judo.