LEGOLAND Castle Hotel in Carlsbad is a 250-room, fully themed on-site hotel built directly adjacent to LEGOLAND California Resort on LEGOLAND Drive. Three room categories—Knights & Dragons, Royal Princess, and Magic Wizard—outfit every guest room with LEGO building tables, themed LEGO sculptures, and a separate children's sleeping area with bunk beds and a trundle, matching the immersive design philosophy of the neighboring SEA LIFE Aquarium's walk-through ocean tunnel on the same resort campus. Standard rooms sleep up to five guests on a king bed and bunk-plus-trundle configuration; the Royal Princess Suite expands capacity to seven. Guests receive exclusive early access to LEGOLAND California before the park's general opening, a perk reinforced by on-site dining at the Dragon's Den restaurant and the same Carlsbad breakfast scene that includes Beach Plum Kitchen's brunch program on Carlsbad Boulevard. Each of the 250 rooms integrates an in-room treasure hunt with a physical prize, while the Grand Hall lobby features a castle-themed LEGO play pit constructed from over three million bricks.