One thing I would say is NEVER attempt to fly in a pet on a public holiday here in Tenerife. As mentioned above we were finally able to collect our 2 cats after 3.5 hours of them being sat in their boxes on a small trailer at the security gate adjacent to the Cargo Terminal - they were pretty traumatised from this experience. Monarch investigated and as usual everyone is blaming each other with no one willing to accept responsibility. I would NEVER use Monarch again, the paperwork we were originally handed by Groundforce was for 31 crates of apples! But they blamed the Guardia Civil, claiming they were too busy because of the public holiday.