Respawned under the map

I just opened the game and was spawned underneath the ground in the Shallows, in the swimming state. I don’t 100% remember where I quit the game yesterday honestly, maybe it was in the Shallows, but I’m pretty sure it was actually in the sewers (I was attempting the sewers boss so I was at the nearby whisper).
I tried swimming to the shore before dying (see pic attached) but I failed to get back on land and died.
When I respawned, I was back in the sewers, at the very whisper I remembered being.