In an non-animal but a very helpful new, Jatim Park and Indonesia's train agency starting this month is now providing shuttle bus that will be serving and transporting visitors arriving from Malang Kota Baru train station to the town of Batu. Tickets that are worth 35.000 Rupiah each can be bought both offline in the station or online, with the schedules starting from 6 AM, 10 AM, 14 PM, and ended on 18 PM everyday.
Source (In Indonesian):
https://www.google.com/amp/s/jatim-...us-dari-stasiun-kota-malang-berikut-jadwalnya
When I went to Batu back in 2014, I stopped at Surabaya and continued to Batu by bus. It was a long trip, and never realized Malang had a train station.