Tivoli Gardens is very pretty in October. Decorated for Halloween it brings in a lot of people but due to the moody weather it’s nowhere near the same amount as in summer. It felt like the majority of people there were locals. The tickets can be expensive but luckily for us there is a cheap ticket option that offers the opportunity to just walk around inside. Since we did not travel with kids we chose this option. Great for solo travelers, and couples who want to visit the park without going on rides.