Luggage

As our luggage limit is only 20kg I will have to be a little creative! After all we will be on the boat for 2 weeks, have a few days in Picou, a day up a snow-covered volcano and 4 days in the Amazon raina forest, so the range of clothes required is quite wide! Shorts and t-shirts for the boat, plus swim suit (dare I wear a bikini?), snorkelling gear, wet-suit as I'm advised the Pacific is cold even on the equator (mind you that will help keep the spare tyre in place!); cold-weather gear for the volcano (boots, fleece, wind-proof jacket, trekking pole) and long trousers and long-sleeved shirts plus thick socks (for in the wellies!) for the rain forest, not to mention the light-weight rain coat and trousers! Add to that the camera(s), mobile phone + chargers, binoculars, suns cream, mosquito repellant (Avon Skin-so-soft is best, I'm told)..... the list is endless. Any advice folks?