The following are some of the many interesting places to visit in the vicinity of NES:

The historical site at Reykholt is only 2.5 km from Nes. There are exhibitions about the history of Reykholt, and work and life of the medieval writer Snorri Sturluson in Snorrastofa. Fosshótel and a small grocery is also there. See Snorrastofa.is (picture 1)
Lava Waterfalls Hraunfossar and Barnafoss (18 km) (picture 2)
The Lava Man, „Hraunkarl“ near by Surtshellir  (34 km) (picture 3)
The lava cave Surtshellir in Hallmundarhraun. (35 km) (picture 4)
Hot Spring, named „Vellir“ is in the river Reykjadalsá about 2 km walk from Nes. (picture 5)
Deildartunguhver and the greenhouse farm Víðigerði are 5 km away. (picture 6)
Along the Rauðsgil is a notable and interesting canyon view. (6 km9  (picture 7)
In Kleppjárnsreykir there is a swimming pool and elementary school (6 km). Also a diner and some greenhouse farms. (picture 8)
The nearest town is Borgarnes. (37 km. picture 9)

Video from Deildartunguhver