We just got back from a trip with three little children. Some charter companies will do the netting for a fee. I know navigare will do it at $450.

We chose to look for a boat that has a walkthrough layout, such as the Leopard 45 (what we chose - http://www.thecaptainscompass.com/images/SM_Fwrd_Cafe_2.jpg) or the Bali. Then the kids dont have to walk the side decks ever, even at a slip or on a mooring. Also, fewer worries with open hatches either.

I also purchased one of these (https://www.amazon.com/gp/product/B0BGSFXZZF/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1) and installed Grommets. I then used shock cords to "close off" the transom. It worked beautifully and we had a place to store LOTS OF KID [censored]. This is the best photo I could find of the set up. https://docs.google.com/document/d/1TpfKSWrIymkC6sey8POsqADlphVMZVeJjOKQ693MgzY/edit?usp=sharing I brought four 90L duffels full of kids stuff. We used most of it.

We brought our own life jackets that they are used to and wouldnt fight us on wearing them. If we were under way they were wearing them. No questions asked.

Feel free to shoot me an email - vytisracing(at)gmail(dot)com More than happy to share what we learned.