Fun logo, that looks professional but adventourous

Sydney Harbour Boat Tours

Sydney Harbour Boat Tours, is a new tour on Sydney Harbour. Its is the only type of tour of its kind on Sydney Harbour, it basically goes where alot of the others don't. It is an adventourous tour that is done in a smaller boat, which allows us to get up close and personal to certain houses and icons on Sydney Harbour.
The tour is known at this stage as Backpacker Boat Tours, though after a year and half, of people saying they were getting scared off by the word Backpacker, I have had to change it to the new name of Sydney Harbour Boat Tours, so it will attract a wider audience, and all types of people.
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Alot of boat companies have the opera house and harbour bridge in it, so Im looking for something a little different, but that doesnt mean I want to disclude the shapes of the harbour bridge or opera house in the design, as these shapes are definitley recogniseable around the world.

The target audience is everyone and anyone, the tour is designed for any age and type. But they do have to have to be of reasonable health and fitness. People who are fun and adventourous, and like to get outdoors

Colourful, striking but a clear image, and wording, as this will be seen on the side of my boat and coutesy bus, I use. It has to be able to be read by people of all different types and from all different backgrounds. I will also use the logo on my brochures and in my web design.
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Nothing to flash looking, but not cheap, just clean, clear and easy on the eye.