On Friday night, the former Bachelor star joined 120 other reality stars for the "Pirates and Princesses Party" at Give Kids the World, a charity that grants wishes to children with life-threatening illnesses.
Galavis swashbuckled his way through the crowd, chatting with the children – and obliging their mothers by posing for photos.
"It's important for me to be here because there are so many children who are going through painful things," he tells PEOPLE. "I have a daughter who is healthy, thank God, and sometimes we take that for granted. I'm glad there are places like these for sick kids, and I'm happy to support them."
"They do everything here at Give Kids the World," he continues. "They give these kids a week where they can just have fun, and not focus on being sick. So that's why I dress like a pirate to come here – because it makes the kids happy."
Galavis was part of Hearts of Reality, a weekend event in Celebration, Florida. The event, sponsored by Lexin Capital, raises more than $100,000 for the charity in a weekend.
Stars of The Bachelor, Survivor, Big Brother and other shows signed autographs, made appearances, and raised money from their fans. Catering was provided by Paramount Fine Foods.
Other reality stars were similarly touched by the event.
"Give Kids the World is such a magical place,", said Survivor's Sierra Dawn Thomas who had a poolside tea party with another girl. "Being surrounded by such amazing, beautiful children was such an awesome experience. I walked awa feeling so blessed to have been a part of something that gives hope to children. It's truly an experience I'll always keep close to my heart."