Amazon rain forest, 2 weeks. £1810. Worth it?
I’m considering going into the rain-forest for 2 weeks, obviously i understand this isn’t going to be cheap but do you think this is good money if it covers, flights, accommodation, food (accommodation i suppose), tour guide professionals, supplied equipment, safe drinking water which you may see as part of accommodation and food, and mosquito nets and other health precautions such as bug repellents, first aid kits ETC. Do you think this is good? i will be doing things such as white water rafting, animal studies in order to generally conserve and volunteer in the amazon. Or could i get it cheaper? Thanks 
If you can afford it without breaking into your piggy bank, do it.
Make sure that your tour company is reliable by doing a background check on them. Contact the Brasilian (that’s the way they spell it in Portuguese) embassy in London and asking to talk to the cultural or tourist office attache.
If that’s on your "bucket list" (see link) you’ll hate yourself if you don’t go now and you get too old to do it later.