Before expanding our Russian's enclosure to make it bigger and better, I've been doing some reading around the forum to brainstorm ideas. @Stitchpunk had some awesome links about enrichment (and I've included them below if anyone's interested) and I was wondering if a small pile of lava rocks would be fun as my Russian LOVES climbing. I'm working to get rid of many, many lava rocks in our yard to make way for a butterfly garden so I have more than enough to spare for some possible tortie enrichment. Do you guys think these are safe and that the unique texture might interest a tortoise?
Doing a little research into environmental enrichment for pet tortoises and will share good links as I come across them. This one has got me thinking about suitable toys: http://tortoisegarden.com/2015/07/27/enrichment-providing-mental-well-being-for-your-tortoise/
https://sites.google.com/site/tortoiselibrary/Indoor-Housing/enrichments
http://consciouscompanion2012.com/tag/tortoise-and-turtle-enrichment/
http://www.tandfonline.com/doi/abs/10.1080/10888705.2014.917556 this one is about colour preference in tortoises. I have access to the PDF if anyone wants it.