Thanks for finding it. Just pasting the relevant subclause:

> D. Parking in rear and side setbacks. Operative boats and large pickup campers, motor homes, recreation vehicles, utility trailers, and vacation trailers shall be allowed to be parked or stored in a required rear or side setback in a residential district only if screened on the side and front by a six-foot-high fence. In these instances, the provision of adequate light and air to a neighbor’s window shall not be obstructed.

Quite odd that a city called Seaside doesn't like boats to be kept in sight.

Perhaps this is not about sight as much as about proximity. I'm guessing parking, walking or driving next to a boat could be not as safe as compared to e.g. a parked car.

Are you suggesting that walking by a boat or rv is somehow dangerous?

I don’t know about RVs but American boats are famous for spontaneously attacking pedestrians with their flying jibs.

If the boat is not correctly secured on its trailer, uses an inappropriate trailer, lacks chocks on an incline, has dangling elements, etc - then sure.

I would think a sea-side city, of all the cities would need such a legislation due to the abundance of boats in their neighborhoods.

I was going to say...if you want to repaint a fence in my HOA neighborhood, the board needs to approve it if it's not on the list of pre-approved colors.

This would have never flew with an actual HOA with rules but the gullible internet is sucking it up.