The Sirimon route allows you to ascend more steadily and gives you a stunning approach to the final peak. For this track, you’ll need a minimum of two days but it’s better to take an extra day to really adjust to the altitude. This is one of the most popular routes to the summit. There are a few good things about this route, one is that it’s somewhat protected from the rainfall so the track stays drier. The other is that there are two camps along the way, Old Moses at 3300 m and Shipton’s camp 4200 m. This allows you to recharge on your way up and take the walk at your own pace.
The Chogoria route is an awesome option for your descent. It takes a bit longer so you’ll need more time. It’s well worth it though. The scenery is spectacular and you’ll be able to take in views of waterfalls and an amazing gorge. This descent takes around three days.