Abstract: Disclosed is a computer implemented system and method for organizing a group activity for multiple paying parties. Venues can offer group activities and participation in the events may be organized by a host user according to terms defined by the host. The terms may include a fee splitting arrangement dividing the cost of the group activity between proposed participants. The terms may be communicated to invitees who can agree to the fee splitting arrangement. An activity may be reserved with the venue when all parties have agreed to the fee splitting arrangement and the fee has been collected.