Considering a trip to GBR/Cairns for the two of us; I have done an introductory dive and would prefer to do another (or two) while at the Reef; my wife is a snorkeler and not a strong swimmer and fearful of strong currents (having once almost been washed out into the Ocean while in Thailand!). So we have a few questions:
1. What is the best time of year to travel, for weather purposes?
2. What is the best way to get to Cairns if we also want to go to Sydney and other parts of Australia?
3. If we want to visit two or three sites for snorkelling and introductory dives (maybe over two visits) which operators would you recommend given our abilities?