We stayed there in October at the AKL, and are going back in May to AKV. I know what to do there all day without visiting the parks, because in oct. we arrived at 6am after driving all night, and our room wasn't ready until 4pm! I know we could have went to the parks, but we were so tired, we hung out at the lodge hoping our room would be ready early (plus they knew our story, but no pixie dust this time, even for DH's 40th). So, I know the lobby is relaxing since I spent a lot of time in a comfy leather chair reading, trying not to fall asleep (didn't want to wake up with drool on my chin in front of complete strangers!

). The pool is nice and relaxing, found a chair after changing in their nice change rooms into my suit, more reading time. DH enjoyed the fitness centre while I lounged - he thought some exercise would wake him up a bit. I was able to enjoy the fitness centre as well, but only for the shower room to freshen up before we had some lunch. The gift shop there is great for killing time as it's large and has many uniqe African items along with the usual Disney ones. Just wandering the lodge and seeing all the different art throughout, and enjoying the outside savannah views helped us relax instead of stressing about our room not being ready.
The room was beautiful - we only had a standard view of the parking lot, so we are looking forward to our savannah view in May, but the standard view was fine for the amount of time we spent in the room. We had reservations for Boma at 5 pm, so we quickly showered and changed once we got in the room and went and had a wonderful meal (we've been to Boma before, but it was soooo nice to eat and just wander around until we wanted to go back to our room). At 9 pm you could go to the Arusha savannah by the pool and use night vision goggles to view the animals - that was really cool. There were many other activities during the day, all of which are listed on a bulletin board downstairs by the restrooms beside Boma - I think there was cookie decorating in Boma, a taste-testing tour in Jiko, some crafts for the kids (or big kids like us), and much more. We didn't get to experience any more of it, as we hit the parks the rest of the week.
Enjoy! We can't wait to go back!