You can find the experience location and meeting point information on the activity's page under the "Location" section. If you have a voucher handy, the location of the meeting point is described on the voucher in the "Meeting point" section.
If anything is unclear, contacting your host is the fastest way to get an answer. You can find their contact information on your voucher. We can also contact your host for you, but please keep in mind that this will take longer.