Climbing to the summit of Mount Psilorítis, for experienced and properly equipped hikers, is not at all arduous. The route, which diverts from the path to the Idean Cave just beyond a small chapel, forms a stretch of the E4 Pan-European footpath and is marked with the red arrows and the E4 waymarkers. It should be a 6–8hr return journey to the summit, although in spring, thick snow may slow you down. Don’t attempt the walk alone as you could face a very long wait should you run into trouble, and mobile phones may not have a signal in places.
If you’re prepared to camp on the Nídha plateau (it can be very cold), or rent a room at the Taverna Nida, you could continue on foot the next day down to the southern slopes of the range. It’s a beautiful hike and also relatively easy, four hours or so down a fairly clear path to Vorízia where there is no food or accommodation, although Kamáres, 4km west, has both.