The locals might recognize at least the following villages: Keskusta (the center), Hylkiranta, Järvikylä, Kalaja, Kangaskylä, Kinnulanranta, Kiljanranta, Köyhänperä, Leppälahti, Levonperä, Lokkiperä, Metsäperä, Mäntyperä and Räisälänmäki.

Reisjärvi has a highly diverse nature, with many lakes, ponds and smaller rivers, rocks and cliffs but also marshes and lowlands.

A very remarkable sight of Reisjärvi nature is one of the northernmost in Finland habitats of wild Small-leaved Lime (Tilia cordata), 63° 38′ N (right after the northernmost reliably confirmed natural habitats in the municipality of Sonkajärvi in the vicinity of the lake of Kangaslampi, 63° 45′ N and near the hill of Salmisenmäki, 63° 43′ 42" N).

[6] Seven old long-boled limes continue to grow in a mixed forest on the cape of Kokkoniemi jutting out into the lake of Pitkäjärvi.

[7][8][9][10] Following the Peuranpolku ("deer's path") trailing route, which begins in Reisjärvi, provides an excellent view into the landscape of the area.