The forecast warned of extreme heat but in typical Welsh style, we were instead welcomed by a light rain shower at the free car park beside Henderson Village Hall. This community hub is named after Major Henderson, a local WWI hero and philanthropist who played a significant role in the village's development and post-war recovery. Undeterred by the drizzle, we began our scenic loop with a steady climb up to the Monmouthshire & Brecon Canal, Built between 1797 and 1812, this 33-mile canal once transported coal, limestone, and iron from the valleys to the docks of Newport. Today, it's a tranquil ribbon of water brimming with birdlife and narrowboats. Continuing uphill, we joined the Brinore Tramroad, constructed in 1815 by the Brecknock and Abergavenny Canal Company. This horse-drawn tramway once carried limestone and iron ore from the Talybont quarries down to the canal, now it's a peaceful, history-rich path through stunning scenery. After a steady pull, we descended sharply to our lunch stop atop the Talybont Reservoir Dam Wall, where we were treated to gorgeous views and cooling breezes. The reservoir, completed in 1939, is the largest in the Brecon Beacons and an essential water source for Cardiff. Suitably refreshed, we picked up the trackbed of the old Brecon & Merthyr Railway, which opened in the 1860s and once rattled with steam trains carrying passengers and goods between Brecon, Merthyr, and Newport. Today it's a flat, scenic path perfect for walkers. We passed the Danywenallt Study Centre, a 17th-century farmhouse beautifully repurposed into an environmental education centre by the National Park Authority. Surrounded by woodland and wildlife, it's a gem of outdoor learning. Next, we followed the Thomas Vaughan Walk, named in honour of the 17th century Welsh metaphysical poet and physician who was born just a few miles away. Vaughan's poetry, deeply spiritual and inspired by the beauty of the Usk Valley, continues to resonate today. This walk honours both his literary legacy and his connection to the local landscape. A gentle stroll through wildflower dotted meadows brought us back to Talybont-on-Usk, where we rounded off the day with a well deserved drink at The White Hart Inn. Dating back to the 16th century, this historic canalside pub was once a favourite stop for canal boatmen and now serves as a perfect spot for thirsty ramblers. Huge thanks to Morfydd & Rob for leading today's beautiful and varied walk. We welcomed guest walker Jim, great to have you along! And in an unusual twist, there were no dogs today left at home due to the initial heat warning. Sensible decisions all round.