Conakry is a city in Guinea.
Towards Sierra Leone or Kindia Taxis run a bit like buses in Conakry, to get out of the city and to a hitchable spot heading East you need to take a taxi first to Kagbélen and then get another to Coyah. The-nomaddicts got a ride in March of 2020 from this location 9.720931, -13.372392. They got to Mamou from there in 3 rides.
Places to avoid
Accommodation and Sleep
The only place to camp in Conakry in on the islands off the coast. Getting there is fairly cheap, just 6000GF for a return ticket and camping is fairly common among locals. Many come on Friday and camp until Monday. The rest of the week the beach is pretty deserted. The-nomaddicts camped on Soro Island for a few nights and were not disturbed. Everything on the islands is more expensive so bring supplies, although its not too long a boat ride back to the mainland and the port is the heart of downtown so going back isn't too much of a hassle. Many of the embassies are near the port so the islands are a good option if you need to get your visas done.