Sure; it really depends how you're walking. But I know plenty of hikers who'll set off at 7 or 8am, and have their day's hike finished by midday; this could easily work that mode during summer time.
Regarding boiling - why would you waste fuel if you don't need to?
Also, this is a _really_ good one to remember in emergency/unexpected situations. Stove broke? Run out or spilled your fuel? Steripen out of battery? As long as you have the right bottle and some sun, you can still clean your water.
Regarding boiling - why would you waste fuel if you don't need to?
Also, this is a _really_ good one to remember in emergency/unexpected situations. Stove broke? Run out or spilled your fuel? Steripen out of battery? As long as you have the right bottle and some sun, you can still clean your water.