I and a friend hiked a section of the GR92 from Roses to Portbou in early June 2022. I could find very little information for hikers attempting to do this on their own so thought it would be helpful to share some of our experiences. Firstly the timing of our hike in early June was perfect - the weather already hot but not as hot as it gets later in summer. Early June is mysteriously still out of season so we could often enjoy low season prices and many of the beaches and resorts were empty of tourists. We got some great hlking route maps from tourist information centres along the way. The G92 is mostly well sign posted but not always - we had to ask locals and make use on online maps at certain critical points along the route where signage totally failed us. Distances between villages and/or resorts are short enough that you do not need to carry camping equipment and food - just enough water for the days hike and snacks. Unless of course you chose to camp out, which we did for a couple of nights. We found very little drinking water available on the way which was only a problem for the sections where there is quite a distance between villages - such as from Cadeques to Port de la Selva. The route from Roses to Cadaques is also long and the only 2 settlements along the way, Cala Montjoi and Cala Joncols are not villages but private resorts. The former allowed us to have a meal but the resort at Cala Joncols would not even serve us a coffee!
We were hoping to find cheap Camino-style lodgings but these do not exist on this route which makes the hike quite expensive. We did however manage to find some lovely and very reasonably prices places to stay along the way- although this probably wouldn't be possible in high season. We stayed in a beautiful hostel right behind the Tourist Information Centre in Cadeques, a campsite in Colera and a most delightful hotel in Portbou (Hotel Commodoro) - with prices for both of us sharing ranging from E30 (campsite) to E70 (hotel).
The route is really rich in scenic and cultural treasures - the combination of undeveloped natural coast line and historic villages makes it a truly memorable hiking route. For swimmers, it is pure heaven - the trail goes mainly along the coast and one walks past secluded coves and beaches all the way where you can strip off and swim naked if you want to - bathing suits are sensibly entirely optional on the Costa Brava (with the exception of the more popular beaches within resorts or main towns). Another wonderful feature are the swimming lanes that are marked out with yellow buoys across most of the bays en route. There is usually signage showing the swimming lanes and distance, sometimes in combination with coastal walking/running routes.