LEGO 21356 River Steamboat Building Instructions

LEGO 21356 River Steamboat is a 2025 LEGO Ideas set focused on the boat build. The details table below lists 4090 pieces, an official MSRP of 289.99, along with the set number, theme and year.

About this LEGO instruction page

Watch the step-by-step LEGO instructions video for LEGO 21356 River Steamboat. You can pause between steps, follow the build order, and use the related instruction links below to find more sets from the same theme.