How to contact this lady I met abroad

I just got back from the Philippines and I met this lovely lady there. A friend of mine was there for an international romance tour, so I tagged along to see the sights and stuff. While I was there, I met one of the tour organizers in the hotel that we were staying in. After my friend’s event, we spent some time together while we went around the city.

Unfortunately, like an idiot, I totally forgot to ask for her contact information online so that we could continue communicating. Should i contact the organizers of the tour or should visit the country again on my own? Or would that come off as too creepy? I’d really like to talk to this woman again. If you guys have any ideas or suggestions that would be great. thanks!