Most travellers pack activities into arrival and departure days, trying to maximise time. The result is exhaustion, missed opportunities, and lower enjoyment of actual destination days. Treating travel days as travel (read, eat, rest, gentle exploration) produces better experience overall.
Why the rest pays off
Travel itself is tiring (jet lag, sleep disruption, decision fatigue). Body and mind need recovery before deep engagement. Activities done while exhausted are not enjoyed properly anyway.
What 'rest travel day' looks like
Arrival: get to accommodation, eat something, walk gently around immediate area, sleep when locally appropriate. Departure: pack at unhurried pace, light breakfast, easy transport to airport with time buffer. No major sightseeing on either.
Build at least one true rest day every 5-6 days of a longer trip. Most users notice they enjoy active days more after rest days. Pace matters more than activity count for trip satisfaction.