@Cara Lake for sure, we are very far from any of the oceans.
We take our baby out on the lake, we just make sure she’s wearing a baby life jacket and that she’s in arms the whole time with plenty of sun protection (canopy, sun hat, baby-safe spf, etc)
My baby has been on a ferry (Brooklyn Bridge Park) , a speed boat (Ocean ), and a vessel (ocean) . He was completely fine and mostly just enjoyed watching and feeling the water splash
Ocean? river/pond/lake? Freshwater was fine, no issues. Just hold tight, face them away from the wind. Haven't brought mine on an ocean though.