4 Days 3 Nights trek this is like the 3D/2Noption. The only difference is that you will camp by the lake on the second night instead of just having your lunch. This will make you eliminate 10-12 hours of trekking on the second day and allows you to be energized when you continue trekking. You will also have more time to enjoy the lake and hot springs by fishing and taking a relaxing dip there.If you are not that fit and are worried that it will be difficult for you to trek Mount Rinjani, we recommend that you get the 4D 3N Rinjani trekking package. This will let you lessen the time and effort for trekking. But if you know that you can trek with less time, then choose 3D 2N trekking package. Just a warning, it may stress you more, might leave you really tired each day of the trip, and might lessen the opportunity for you to actually enjoy the experience.