The LEGO Friends Summer subtheme encompasses sets focused on beach and summer activities in Heartlake City. Notable sets include 41316 Andrea's Speedboat Transporter (2017), which features a speedboat, a trailer, and a beach scene; 41317 Sunshine Catamaran (2017), a large catamaran with various leisure facilities; and 41347 Heartlake City Resort (2018), a comprehensive resort complex with a monorail, water slide, and various recreational amenities. These sets highlight summer vacations and water-based fun, reflecting the diverse interests and adventures of the Friends characters during the summer season.