Can you justify the price for this type of vacation / holiday to this destination?

In Hawaii we do not have ecotourism destinations, but rather have providers of day trip activities that focus on natural and cultural resources.  Because of the impact of many people on  the natural resources, most tours are for small groups of 10 to 15 passengers.  Day trips can run from less than $100 to $500 depending on various factors.  Someone visiting Hawaii for a week or two, can plan a trip that encompasses several “ecotours”, so paying for a tour does not add that much more to the price.  We have board members who can plan personalized itineraries for visitors that provide them the planning expertise, the accommodation and the transportation that are in general less expensive than a commercial package for a vacation to Hawaii, who can tailor the itinerary to their interests and hobbies.