Deep-Sea Research Submarine

Deep-Sea Research Submarine is a set by LEGO. Best price for this version on ToySetFox: KidInn, €35.99 + €3.99 shipping, incl. VAT (checked on 5 October 2026). Recommended price of this set: €39.99.

Inspire kids aged 9 and up to explore the secrets of the oceans with this Deep-Sea Research Submarine toy set (42201). The model is packed with features like those found on real submarines, including steering, 3 spinning propellers, 3 air tanks, and a cockpit with seat and controls. The submarine features an extending arm to grab and lift the barrel accessory as kids play out their own sea-bed adventures.

This submarine model kit comes from a range of LEGO® Technic™ sets which feature realistic movement to introduce young builders to the universe of engineering. This set makes a great gift for kids who enjoy buildable vehicle toys.

Let the LEGO Builder app guide your child on an intuitive building adventure, allowing them to zoom in and rotate models in 3D, save sets and track their progress.