It is an easy 30 minute drive from Malang to Batu.
Regular shuttle buses and bemos ply the route, departing from Malang's Landung Sari bus terminal.
The better hotels in the area are open to arranging to collect you from Malang. If you are not driving yourself, try to get this as part of your accommodation package.
A word of warning that it does get very crowded in Batu at weekends and during school holidays with trippers from Malang and Surabaya. Avoid those periods if at all possible.
