"This set is incredible and fun to build but the first thing you notice as you open it are the boat halves that join together and you realise the size. LEGO sets never show the scale due to the background but this boat measure 63cm (2') long but is lots of fun to build. It functions as a boat too, just don't expect to be floating it in your sink. I love this whole range in total and one thing I find interesting is it shows a balance of male and female minifigures in various roles, so both men and women are seen exploring the ocean together, captaining ships, and working on the ship. This range also helps national geographic and I would recommend it (I haven't got the signle person submarine for 4+ but if you have kids that age go for it) but it is definitely a fun set to build."