Thank you for your kind words. he was, as you all reassured me, just having telephony issues.

And the reason even the accommodation couldn't be reached was because a storm had knocked out their communication lines, just at the very worst time for my stress levels!!
I try not to over worry, normally, but I just needed confirmation that he was okay. After today he's going to be pretty much uncontactable - he will be staying in a community that doesn't have regular electricity etc (as
loCAtek said), and will go into the town just one day a week. On that day he'll send quick emails from an internet cafe, so we'll have a chance to hear what an awesome time he's having. In an emergency I could contact the organisation and get a message across to him, but only in an emergency. So I just wanted to hear from him before he 'disappeared' for the week. I'm not stressed about not hearing from him from now on, because I expected that. It was just the first part - just getting myself used to the fact that he''s overseas etc.
If he doesn't email once a week I'll probably get a bit twitchy again though!!
He's not so much daunted by learning the new cultures etc,
loCAtek - It's the opposite in fact. He's very excited and eager about it. After he comes back from this trip he wants to save up again and go on other trips to other places, and he wants to continue his volunteer projects. He's very keenly interested in wildlife and conservation (in fact, that's the sort of thing he'll be doing at university), and in travel and interacting with native people and native cultures. Hes not 'touristy' at all. He's more sort of Bear Grylls?Steve Irwin/Jeff Corwin/type (they're some of his heroes!). So for him this is just the first of many, many trips and adventures.
He's been saving for ages and was originally looking at going to Kenya to study the lions. He would have been gone for months and would most definitely have been uncontactable for the most part. It was for my sake that he changed his first choice and went somewhere 'safer' and 'shorter' for his first big trip

I do very much appreciate that he cares and respects me enough to do that, and it gives me a chance to get used to the idea that he will be doing this sort of thing regularly. He will eventually be going to places like Kenya, and Madagascar, and Costa Rica, and Mexico, and all the other conservation volunteer project places in places that will probably scare me at times.
It's not a Government organisation,
bigskygal, but it is a well respected, recognised volunteer group : This is their website -
http://www.gvi.co.uk/
Of course, he arranged and went through the Australian office, but the projects are worldwide and can be arranged from anywhere. Their main offices are in the Uk, and their website gives a pretty thorough description of the types of projects they do.
It's not just for young people - anyone can do it. Even I could!! (Although I'd have to be a bit sensible in my choices, taking into account my age and general unfitness). It's just a matter of saving up the money, and being dedicated or brave enough to do it! It' initially seems a little bit expensive because you cover your own airfares and then the costs that they quote are costs toward your food and board, and administration costs and offices in the cities/places where their projects are, and co-ordinators etc. For me it's a reassurance that if there's any political upheaval, natural disaster or other emergency, they get straight in and try to get their volunteers out. At this stage, until he's a 'seasoned traveller', I'm happy to have that reassurance for now. I'll have plenty of years in the future of him trekking about in politically uncertain places without that added 'security'.
On this and other trips through this organisation he'll generally be participating in animal research, and also while living in the community will help with things like building projects, teaching English etc.
He's as keen on marine conservation as he is on land conservation, and later this year he also intends to get his scuba diving certificate so he can cause me even more stress. I have a phobia about being in water I can't see clearly in - like oceans etc, and he is intending to do ocean dives in shark ridden waters, and maybe even deliberately be in the same place as them. He'll cause me a lot of grey hairs I think!!
He has been/and this year will again become a member of the local volunteer fire fighting group (CFA). He was a junior member for a while, but will rejoin as an adult.
I'm so very proud of him (well, of all my sons, actually).
Thank you again - I am quite worn out now (not much sleep last night, work today until late - got home about 9pm - , and it's now 1.30am), so please forgive any typos and any disjointedness in my writings.
