Part of the vast Lihue–Koloa Forest Reserve, this grove of rainbow eucalyptus (named for its colorful bark), monkeypod, and mango trees may not be well maintained from an arborist’s standpoint, but it’s a nifty, family-friendly place to picnic and dip in a cool stream, particularly after a hike on the nearby Kuilau Trail. A short loop trail leads to a swimming hole with a rope swing; be sure to wear mosquito repellent. Facilities include picnic tables, pavilions, and composting toilets. Part of the fun is getting here: The main parking area and picnic tables are across a spillway at the paved end of Kuamoo Road, about 5 miles inland from Opaekaa Falls. (Please use good judgment when deciding if it’s safe to ford the stream.) This is also where adventurers will find the trail head for the 13-mile Powerline Trail, which ends near Princeville, and the extremely rugged, unpaved Wailua Forestry Management Road, the start of much more challenging treks to the Jurassic Park gates (just poles now) and the “Blue Hole” inside Waialeale.