Ryoan-ji is compact and quiet, so plan a short visit focused on the rock garden: you view the famous 15 stones from the wooden veranda, so take off your shoes, sit or stand quietly, and resist the urge to rearrange or get close to the gravel. Go early morning or late afternoon to avoid tour groups, bring cash for the modest admission (about 500 yen) and the small museum, and allow 30 to 60 minutes if you want to wander the larger pond garden and tea-house area. Photography is fine but keep it unobtrusive and leave tripods at home; expect crowds during cherry blossom and autumn foliage seasons and be prepared for a gentle walk from the nearest bus stop.