I used a home made linen board....
METHOD for making one: I roughly cut out some preprimed canvas stuck it to a MDF board so it overhung on the sides. I used Neutral PH PVA glue (so it wont rot in the future.) Once dry I cut it butt up to the board with a scalpel knife = linen covered board ready to use!
And this was the first painting I tried on it. I have had this canvas for years and I'm not sure whether it's too course. The subject may have called for a finer weave but it made me apply the paint loosely yet put in details like the boat. Its always a fine balance of enough information to it being overworked.
Here are the stages of my painting