Catios — outdoor cat enclosures — allow indoor cats to experience outdoor enrichment safely. Good catio design provides environmental complexity that significantly improves feline welfare.
Catio design is an area where welfare investment directly translates to measurable improvements in cat quality of life. Cats with catio access show increased time spent watching wildlife, sunbathing, and exploring complex environments compared to indoor-only cats without outdoor access. The enrichment value comes from novel stimuli — bird sounds, insect movement, plant smells, variable weather — that static indoor environments cannot replicate. Size matters: larger catios with multiple height levels, climbing structures, and plant life allow the most complete behavioral enrichment. Tunnel systems connecting catios to indoor spaces allow cats to choose their environment, supporting the autonomy and control that contributes to feline psychological wellbeing.