1. Sally is looking for any suggestions on when and where the best place and the best time
    of year are for seeing the northern lights? here

2. Graham is planning his trip and looking for advice on the best time to visit Mexico for a
    Yucatan tour in 2010 here

3. Alison is looking for some Machu Picchu advice, should she book a tour or do it herself.
    Tell us what you think here

4. What's been your best or worse experience of travelling alone.Tell us here