A few kilometres north of Lawang on the road to Surabaya, the Kebun Raya Purwodadi are expansive dry-climate botanical gardens. The 85 hectares are beautifully landscaped and contain over 3000 species, including 80 kinds of palm, a huge fern collection, a Mexican section, myriad orchids and many varieties of bamboo. The garden office to the south of the entrance has a map and leaflets. Air Terjun Cobanbaung is a high waterfall next to the gardens. The gardens are easily reached; take any bus from Malang to Surabaya and ask to be dropped off at the entrance.
