A car is extremely handy for getting around; this is also a great cycling region, though distances between points can be great. Hiking and cycling routes are marked in blue and red respectively; maps and trail information are available from the visitor centre. Some tourist farms and hotels rent out bikes.
You can also rent a bike in Tallinn and take it on the bus to Viitna as cargo.
You can also use the buses running to the coastal villages to get around the park, though these are infrequent. Ask at the visitor centre for the latest schedule.