The annual Holiday World consumer travel shows are sponsored by the Irish Travel Agents Association.
This year's show features wedding and honeymoon destinations, over-55 holidays and caravan/motorhome holidays.
Hundreds of exhibitors are listed here.
YouTube video is from the 2017 show.
Adult admission at Belfast is 5 GBP, in Dublin probably a comparable amount of euro.
If you want to meet tourism providers targeting the Irish market, this is the place to do it.