Coolboxes

Portable Ice Boxes, sometimes known as passive cool boxes, are great for shorter day trips, taking to a beach and for smaller boats. 

Great insulation and a rugged construction ensure an optimal performance at keeping ice and cool packs cold for hours alongside whatever else you keep inside along with them, they're a great option when you haven't got any electric hookups.

Force 4 Video: Igloo 54 Portable Ice Chest - The best coolbox for a weekend away on the boat