Del. Code tit. 22 § 117
The municipal governments of this state may execute and deliver, in proper form, a lease, concession agreement, easement, or license agreement for any part of the public lands owned by them, including park land and land held in a public trust. The demise and lease of such lands, including public parks, may be upon such conditions and for such rentals as the municipal government deems advisable for the public good, provided that the demise and lease of public park lands shall be limited to recreational purposes and related activities. Whoever leases any of the lands under any restrictions or conditions of a municipal government and fails to comply with the restrictions or conditions set forth in the lease with the government forfeits the leasehold interest granted by the lease.
22 Del. C. § 117