In response to SarahS and Mick W (and all other members following this thread with interest)...
Our Tour Managers receive an appropriate salary for their duties and their income is not dependant on tips. Having said this, if they are exceptional at what they do, or go that ‘extra mile’ to assist customers, many choose to tip them as an expression of thanks and recognition of the demands of their job. You should certainly not feel pressurised to do this on a daily basis.
We do include tipping information in our country information, which is sent to all our customers, and varies depending on the country they are visiting. Many of our customers prefer to have a guideline regarding tipping for, however we do state that this is at the customers discretion and should be paid if you consider they did a good job.
Kindest regards,
Julia