Catch an early regional/InterCity from Brig toward Spiez and then the local train to Kandersteg; the journey takes you through the Lötschberg corridor with Alpine views. Check SBB.ch for the exact departure and platform; trains run frequently but timetables vary by day.
Take the Kandersteg cable car (Oeschinenbahn) up toward Oeschinensee; the ride is short and scenic. Cable car typically operates from ~8:30am to 5:00pm in summer — verify hours on the official site before travel.
Explore the alpine lake (Oeschinensee) and surrounding trails — the main loop and viewpoints are easy to moderate and very scenic; small rowing boats are available to rent on the lake for a calm float. Paths are open year-round in summer; boat rentals operate in daytime hours.
Have lunch at the Berggasthaus Oeschinensee (or the lake-side kiosk) for mountain fare with lake views; they serve seasonal dishes and simple alpine classics. Restaurants usually open by 11:00am in summer—confirm exact hours ahead.
Descend back to the village, grab coffee or an ice cream and visit the local tourist office for maps and short-walk suggestions. Shops and the tourist office usually open by 9:00am and into the early evening.
Ride the cable car up to Sunnbüel for panoramic viewpoints, short alpine trails and a chance for a summer toboggan or mountain-plateau stroll; Sunnbüel facilities commonly run ~8:30am–5:00pm in summer—check local site for seasonal hours.
Back in the village, walk along the Kander river, browse a cheese or souvenir shop, or relax on a bench — a peaceful way to wind down before dinner and trains.
Dine at a local spot such as Hotel Bernerhof Restaurant or Restaurant Sunnegg for Swiss/Alpine dishes — many restaurants serve until around 8:00–9:00pm in high season; reservations advised on busy days.