I love traveling to the ocean.  It is so peaceful.  Have you ever been there and tried scuba diving?
I have been to the ocean a few times but never went scubaing 
It's a fun thing to start doing.  I never thought I'd get used to the breathing apparatus but all it took was a little training.  Do you have any interest in seeing all the fish?
I would love that! The biggest thing for me would be getting used to controlling my breathing.
It's pretty cool to be so close to the fish.  I can't believe that underwater diving goes all the way back to Greek and Roman times.  I'm sure things are a bit more sophisticated now though.
Yeah I wonder how they would dive deep down back then? It must of been really revolutionary at the time
I'm not sure about all the way back then but I know that they started using a "diving bell" in the 16th and 17th centuries.  We've come a long way since then!
O wow! that is really interesting I had no idea that was a thing!
There are different kinds of bells but the most common were open bottomed wet bells and closed bells.  They could withstand a lot of pressure!
Well I would imagine they would have to if one intended to go deep deep down in the ocean.