Dive from the shore

I think diving is super cool and fun to do. There is 1 disadvantage for me. Yes, unfortunately: (as soon as I see the dive boat, I already get seasick. Does anyone recognize this? How do you deal with this? My way is to make the dives from the shore in a sea or in a lake.

Where in the world can you make diving from the shore? I know the dive sites of Bonaire and Egypt (Dahab) Can you recommend me something else so that I can make new dive plans?