The debate over indoor versus outdoor tortoise keeping has significant welfare consequences, with outdoor housing generally supporting better physical and psychological health.
Tortoises kept permanently indoors in small vivariums frequently develop metabolic bone disease, obesity, and behavioral apathy. Access to natural sunlight, varied terrain, and natural forage dramatically improves welfare outcomes. Where outdoor keeping is seasonal, a well-designed outdoor enclosure during warm months combined with appropriate indoor wintering conditions represents a sound compromise.