In my understanding, this phrase does not refer to groups of tourists, but rather to collaborative groups of tourism planners. In fact, the current trend is more toward attracting independent big spenders to ecotourism and adventure tourism than bargain-hunting groups to hanging out on the beach. For example:

<<A broad range of industry stakeholders participated in the Cluster’s strategy work and initiative development including the Sri Lanka Tourist Board, universities, academic experts, community groups, regional tourism associations, and several public sector agencies.>>