My 12 year old son and I took a sail on the yellow sub for a night during our school hols road-trip. Pretty dreadful weather outside but we were as 'snug as a bug in a sub' thanks to a heater, extra blankets and hot water bottles. The attention to detail was amazing in every nook and cranny. LOVED the themed touches relevant DVDs and books. We would love to come again in summer so we can enjoy sitting outside as well. Thanks guys!