Information on other types of souvenirs appears to be unavailable. This is not necessarily the case with some niche tourism products and services. Although niche tourism or special interest tourism does not have a dominant market share in SIDS, there is increasing interest in this area as an additional direct and indirect revenue stream that could have more linkages to the local economy and employment than the traditional mass tourism market. These tourists are generally motivated to learn something new or practise a hobby or sport (e.g. diving) and, perhaps more importantly, seek locally-sourced products and services (including accommodation, restaurants, visitor attractions and transport). Niche tourists are typically professionals with higher disposable incomes, seeking a holiday that is the antithesis of the all-inclusive, mass tourism experience and has the potential to generate more economic linkages along the tourism supply chain, particularly in the shoulder season. A study by Nurse (2001) of festival tourism in two Caribbean states, Trinidad and St Lucia, is presented in Box 2.2.