Tipping guides/drivers on cruise tours?

Have been searching through posts and haven't found the info yet.. On the bus to port so no more time. Anyway we have been on a 5 night pre cruise tour in Alaska. Our director has arranged our all our tours, and the driver has loaded and unloaded all our bags at each hotel. What would be a reasonable tip? We have a family of five. We only did one optional excursion. Two more hours to port....Thanks!

According to a thread I found, "Princess recommends that you tip your Princess tour guide $5-7 per person per day at the end of the land tour." I'm assuming you're on a "Connoisseur Tour," where you've had the same guide and bus driver the whole time. When we took our cruise tour, we had several different drivers and reps.

Thanks. That's helpful. Actually with Royal Caribbean but same guide and driver the whole time. Do they each get that amount?