Glenveagh Castle, nestled in Glenveagh National Park, offers a glimpse into 19th-century aristocratic life amidst stunning Donegal scenery. The castle and its gardens are generally accessible, though some areas might have limited access for those with mobility issues. Exploring the castle and gardens can be done solo, allowing for independent discovery, or through guided tours, which provide historical context and insights. The best time to visit is during the warmer months (spring and summer) when the gardens are in full bloom; operating hours may be reduced during the off-season. Entry fees to the castle and gardens are approximately €7-€10 per adult, and a typical visit lasts around 2-3 hours, allowing ample time to explore both the interior and exterior.