Hi Kim
You will have a great time on this holiday. The safari buses meet you at the airport,and you have the same bus for the length of the safari, so if you make any friends at the airport or on the plane sit on the same bus as them. The soft sided holdall comes on the safari with you, your case is left at the airport and will be at the hotel in Mombasa when you arrive there.
There are several excursions available in Mombasa. The tour of Mombasa is well worth it, you get to see Mombasa, go to the market and have a tour of a wood carving "factory" where you see the workers carving their wares and also have an oppotunity to buy some if you want to. There are two boat trips in the daytime, I did the one where you get the chance to swim with dolphins and also go snorkeling, you have lunch on the boat. It is a long day but worth it. I also did the evening boat trip, you go on a cruise, have dinner and are entertained ,it was very good.
We also had a trip to an orphanage and school organised by our tour manager and guide, but I do not know if this is always available.
Have a great time,there is so much to see and do.
Christine