I bet they had a great time!
On Border Security (Australia), the typical sentence for smuggling drugs of a larger weight, i.e. not the odd little baggie, is around seven years. They'll be young enough to pick up their 'lifestyle' once again, well except the older guy who will be around 70 when he may be released.
The article and this link imply that commercial quantities were involved - which means life in prison.
Drug importation penalties - importing drugs