I don't know anywhere specific close, but a few ideas...1.go through back issues of Dog Fancy. Most libraries have 1-2 years back. each issue features a pet friendly travel spot. 2. Other dog magazine. examples are Bark, Dog World etc. 3. Contact AAA and ask if they have a list of dog friendly hotels.

(I don't know how close it is, but Summer 2001 Issue of Bark talked about a place near Tallahasse FL, and March 2002 Dog Fancy featured San Antonio TX)

Sorry I can't be more help! I hope you find somewhere fun to go!