When to use this
Split gets real rain in November through March, and the museums take about two hours to exhaust. An escape room fills an afternoon, works for a group of teenagers, and is priced per room, so it is better value the more of you there are. The rooms run in English, take two to six players, and last an hour — book ahead in summer and on rainy days, because the supply is small and the demand spikes when the weather turns.
For the rest of a wet day, see things to do in Split when it rains.
Of the museums, start with the Meštrović Gallery, the best of them.
What kind of rooms
The themes are the usual mix — prison breaks, heists, murder mysteries, a Da Vinci code room — and the quality is comparable to any mid-sized European city. The rooms in and around the old town are walkable from the palace; the ones further out need a short taxi ride. Ask your hotel for the one that suits your group, because the operators change and the best room six months ago is not always the best room now.
The other good indoor answer is a cooking class, which is better in bad weather rather than merely tolerable.
Things to do in Split
Boat trips and tours
Split in one day