Sommerrodelbahn Fräkigaudi is 2.8 mi (4.5 km) from central Hergiswil, why not stop by during your stay. If you'd also like to explore some of the parks in Hergiswil, Mount Pilatus is nearby.
The center of Lucerne is home to cultural attractions like Gameorama, so you might want to stop by during your stay. If you want to experience more of the culture Lucerne has to offer, head to Mill Bridge, Jesuit Church, and Lucerne Town Hall.
Franciscan Church is in the heart of Lucerne, so why not stop by during your stay. It's also full of great shops and restaurants, so you can spend the afternoon having a wander.