The user is asking about the "Small trail of the Levada do Rei" levada walk in Madeira. This sounds like it could be PR-18 (Levada do Rei), but the user mentions "Small trail" which might refer to a specific variant. Let me search for this trail using the find_hikes tool. Let me search for "Levada do Rei" to find the traildetails.The user asked about the "Small trail of the Levada do Rei" — this is a community/unofficial trail from AllTrails, NOT an official IFCN PR trail. I need to present it with the unofficial-trail caveat clearly, and also mention the official PR 18 Levada do Rei for context since they're related. Let me structure the answer about the Small trail of the Levada do Rei with its details from the community_trails data, and then briefly mention the official PR 18 as the full/official version. Key details for the Small trail: - Name: Small trail of the Levada do Rei (Pequena Trilha da Levada do Rei) - Rating: 4.3★ from 152 hiker reviews on AllTrails - Difficulty: Moderate - Length: 5.3 km - Route type: Loop - Estimated time: 1.5–2 hr - Area: Madeira Natural Park - Location: São Jorge - Description: Goes around the São Jorge valley, observing herbs and medicinal plants, through well-preserved Laurissilva Forest - It's NOT an official IFCN PR trail — community route on AllTrails - No official open/closed status For the official PR 18 Levada do Rei: - PR 18, Moderate, 5.3 km (+ 5.3 km return), 3:30 hours - Start: São Jorge Wastewater Treatment Plant, End: Ribeiro Bonito - Access fee: €4.50 (via SIMplifica portal) - 4.5★ from 1654 reviews on AllTrails The user specifically asked about the "Small trail" so I should focus on that, but mention the official PR 18 as context since they share the same area.