Kids who care about the natural world can learn about ocean life with this detailed LEGO® Friends Sea Rescue Boat toy building set for ages 7 and over. The set comes with a buildable catamaran that doubles up as a laboratory, plus a small submarine toy. Kids can act out sea rescue stories as they roll the boat over the rubbish to capture it in the boat’s nets, ready for recycling. Nova and Aliya didn’t think that they had much in common with one another but are becoming closer as they take on this shared mission.

Boost the fun

Kids can enjoy an easy and intuitive building adventure with the LEGO Builder app. Here they can zoom in and rotate models in 3D, save sets and track their progress. This set can be combined with LEGO Friends sets 41736 and 41752 for even more ocean rescue adventures (sets sold separately).

Meet the next Generation of Heartlake City

Inspire kids to develop their passions as they explore the new world of LEGO Friends with its diverse cast of characters.


Sea rescue play for kids aged 7+ – Kids who love the natural world can imagine cleaning up the shores of Heartlake City as they build and play with this fun LEGO® Friends Sea Rescue Boat set (41734)
4 characters and accessories – Includes LEGO® Friends characters Aliya and Nova, plus the boat’s captain Gunnar and friend Marco
Accessories for role play – Comes with a net and stick to collect litter, life jackets for all characters, different types of rubbish, water samples, sun cream, a coffee machine, syringe and a microscope
Act out the story – Kids can explore different activities such as gathering litter from the ocean, sorting the rubbish into different bins for recycling, analysing water quality and more
A gift for kids who love sea life – This LEGO® Friends set makes a gift idea for any child aged 7 and over who would love to build a Sea Rescue Boat and create their own ocean adventures
Sized for young builders – The LEGO® Friends Sea Rescue Boat toy measures over 20 cm (8 in.) high, 33 cm (13 in.) long and 18 cm (7 in.) wide
A helping hand – Discover intuitive instructions in the LEGO® Builder app, where builders can zoom in and rotate models in 3D, track their progress and save sets as they develop new skills
A new Generation of Heartlake City – In January 2023, the LEGO® Friends universe expanded to introduce new characters and new locations to inspire more role-play adventures
A quality product – All LEGO® components meet strict industry standards to ensure they are consistent, compatible and easy to build with: it’s been that way since 1958
Safety first – LEGO® Friends bricks and pieces are dropped, heated, crushed, twisted and analysed to make sure they meet stringent global safety standards