The agenda for the 2018 PRSA Travel & Tourism Conference isn't set yet, but the 2017 program looks pretty good.
From the organizers:
"A wide array of useful topics will be covered at the PRSA 2018 Travel & Tourism Conference. This is the only event designed by travel communicators for travel communicators; the conference’s program is developed by the PRSA Travel & Tourism Section."
"The Travel and Tourism Section is for public relations and communication professionals whose specialty is in travel or hospitality-related organizations. This specialized group of more than 500 members is passionate about exchanging knowledge through providing tips and tactics through our annual conference, teleseminars, social media tools, Web resources and travel industry calendar."
Early-bird (ending 17 April 2018) full-conference rate for PRSA non-members is $1125 - but note that pre-conference workshops are priced separately and were $300 each in 2017.
Plenty of time left, so I'd want to see the 2018 program before committing.