Boat insurance

Just bought a boat, a relatively old fishing boat, so I'm just looking for the mandatory insurance cover. I currently have Mobiliar for my car, but before I call them I'm wondering if anyone has the hot tip on cheap boat insurance.

I’ve used these guys for a long time, they specialise in boating insurance. They have very good prices and provide a good service.

Just as a data point: when I was shopping for an insurance for a small inflatable boat, the baloise offer was significantly lower than everything else

Apparently my boat is too old for them to insure.