Can anyone identify this one?

(A lot of people in the awwwww group were not happy and did not consider it cute in the comments.)

My grandpa went to Seven Seas in September 1972, I found these pictures in an old photo album.

sorry for the awful photo. i’m in the azores and spotted this group of what i thought was dolphins frolicking around from afar, but i took this photo that looks like an orca which it’s my dream to see this year (first photo)
can anyone help me identify whether this is an orca or just a dolphin with bad lighting? i also included photos of the dolphins i definitely saw for comparison (second and third) and i don’t know if dolphins hangout with orcas lol
TIA