Page 1: https://www.weasyl.com/%7Estrega/submissions/1786788/the-slide-by-the-sea-1
Page 3: https://www.weasyl.com/%7Estrega/submissions/1888703/the-slide-by-the-sea-3

When your good-natured goading gets your friend swallowed by a sea lion just let him go man, he's gone.

I found the intended part 3 of this in a folder, drawn at some con before the plague confined us all to our homes. I'll post this page and part 3 tonight and then put links in the description, since part 1 was posted almost a year ago.