The Tilar Peninsula was a geographical area of Bajor's Hedrikspool Province.
The peninsula was known for many resorts and vineyards. (DS9 novel: Warpath, TLE - Terok Nor novel: Night of the Wolves)
In September 2376, Starfleet established a base of operations on Bajor in the bluegill parasite crisis. Starfleet set up its camp on the peninsula near the ruins of what had been the Karnoth resettlement camp in the Cardassian Occupation. The location provided Starfleet the best transmission quality in all of Hedrikspool Province. The remote site also allowed the large operation to go somewhat unnoticed. Starfleet had additional smaller camps in Hill, Rakantha and Musilla provinces. (DS9 novel: Unity)