Sonoma TrainTown 20264 Broadway, Sonoma, CA95476 The Sonoma TrainTown amusement park takes you back in time and offers attractions for the entire family in a 10-acre…More park. The most popular attraction is, of course, the 20-minute train journey that crosses bridges and trestles and passes through landscaped areas, waterfalls and historic replicas. The other train-themed rides include a ferris wheel and roller coaster. There is also a children's petting zoo. The park hosts birthday parties and other special events and general admission and parking are free. Individual tickets and packs are sold for the various attractions.