I did one cave dive in Cuba last week. Zapata Penincula was the name I believe.
It was between Playa Larga and Playa Giron.
It was not planned so I had no tech gear with me.

They make big money by taking tourist in the cavern zone.
No formations really - just a long, vertical deep crack.
They want to see you in the sea first, then take you in the cave.

Max depth 77m (supposedly)
Steel Single tanks only Din or Yoke, sidemount possible, air only
Line runs at around 34 m
The guide was amazed by my little Sola video light I had with me.
The rental lights they had was a joke

I will post a video some time soon.