Hersonissos (Limenas Hersonissou) is Crete's biggest package-holiday resort, 26 km east of Iraklion along the northern coast road. In summer it is loud, crowded, and thoroughly committed to giving northern Europeans exactly what they came for: warm water, cold beer, and very little sleep. If that sounds like a criticism, it isn't quite — Hersonissos does its job efficiently, and for families or groups who want an uncomplicated beach holiday with good infrastructure, it delivers.
The town itself has been almost entirely swallowed by tourism. The original fishing harbour is still there, pretty and surrounded by tavernas, but it is now so outnumbered by beach bars and nightclubs that it takes a conscious effort to notice it. The beaches are sandy and well-organised, the water is clear and shallow close to shore, and the resort strip runs for several kilometres with hotels, restaurants, and clubs all the way. It is not a place for travellers seeking authentic Crete — that is 20 minutes away in any direction — but it is a perfectly decent base if you plan to use Crete's excellent road network to explore.
The surrounding area has more to offer than the resort centre suggests. The village of Piskopiano sits on a hill just above town and has kept something of its old character, as has its near-neighbour Koutouloufari. The archaeological site of ancient Chersonisos, with a Roman fountain mosaic, sits right on the harbour, and the Lychnostatis Open-Air Museum on the eastern cliff is the most honest piece of slow tourism on this stretch of coast. And the Cretan landscape — terraced hillsides, olive groves, and views back along the coast — begins almost immediately once you leave the main strip.