Yes, an ACAP (Annapurna Conservation Area Project) is required for the Ghorepani Poon Hill hike and may be obtained from the Nepal Tourism Board (NTB) in Kathmandu and Damside in Pokhara. There are two distinct permits: TIM cards and ACAP permits. Permits and TIMS are priced at: The cost of an ACAP Permit: $30 US/ individual Cost of TIMS card: $10 US (If you trek through a trekking agency) Cost of TIMS card: $20 US (If you trek by yourself)