Koronadal is unusually well-placed for day trips, sitting at the centre of a region with several compelling destinations within an hour or two by road.
Lake Sebu is the single most rewarding excursion from Koronadal. The lake sits about 50 kilometres into the highlands of South Cotabato, in the heartland of the T'boli people. The Seven Falls along the Hikong river are accessible by zipline or trail, and the lake itself is calm and beautiful, set among forested hills. T'boli weaving villages around the lake sell t'nalak cloth — the same abaca-fibre fabric celebrated at Koronadal's Tinalak Festival — directly from the weavers. Allow a full day; the road up into the highlands is slow. Habal-habal or a hired van is the practical transport.
General Santos City lies about 50 kilometres south and is easily reached in an hour by van from the Marbel Transport Terminal. It is a larger city with a more developed waterfront and — if timing allows — the Tuna Festival in September, when the fishing industry that defines the city is on full display. The fish market near the port is worth visiting regardless of the season: General Santos handles more yellowfin tuna than anywhere else in the Philippines.
Mount Matutum rises southwest of General Santos and is visible from much of the Koronadal valley on a clear day. The stratovolcano sits within a protected area and can be approached for trekking with a guide from the barangays at its base. It is a full-day commitment and requires a local guide; arrange this through the Protected Area Management Office in General Santos.