diff --git a/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/HikeDetail.swift b/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/HikeDetail.swift
index c40c2a6..6256bc4 100644
--- a/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/HikeDetail.swift	
+++ b/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/HikeDetail.swift	
@@ -7,9 +7,24 @@ A view showing the details for a hike.
 
 import SwiftUI
 
+extension KeyPath where Root == Hike.Observation, Value == Range<Double> {
+
+    var superDescription: String {
+        switch self {
+        case \.elevation: return ".elevation"
+        case \.heartRate: return ".heartRate"
+        case \.pace: return ".pace"
+        default: return "dunno"
+        }
+    }
+}
+
 struct HikeDetail: View {
     let hike: Hike
-    @State var dataToShow = \Hike.Observation.elevation
+    @State var dataToShow = \Hike.Observation.elevation {
+        willSet { print(dataToShow.superDescription) }
+        didSet { print(dataToShow.superDescription) }
+    }
     
     var buttons = [
         ("Elevation", \Hike.Observation.elevation),
diff --git a/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/SceneDelegate.swift b/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/SceneDelegate.swift
index a1104cc..77691b0 100644
--- a/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/SceneDelegate.swift	
+++ b/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/SceneDelegate.swift	
@@ -20,7 +20,7 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
         // Use a UIHostingController as window root view controller
         if let windowScene = scene as? UIWindowScene {
             let window = UIWindow(windowScene: windowScene)
-            window.rootViewController = UIHostingController(rootView: LandmarkList().environmentObject(UserData()))
+            window.rootViewController = UIHostingController(rootView: HikeView(hike: hikeData[0]).environmentObject(UserData()))
             self.window = window
             window.makeKeyAndVisible()
         }
diff --git a/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/Supporting Views/HikeGraph.swift b/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/Supporting Views/HikeGraph.swift
index c13213a..fbe9e30 100644
--- a/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/Supporting Views/HikeGraph.swift	
+++ b/5 Animating Views and Transitions/Complete/Landmarks/Landmarks/Supporting Views/HikeGraph.swift	
@@ -30,8 +30,15 @@ extension Animation {
 struct HikeGraph: View {
     var hike: Hike
     var path: KeyPath<Hike.Observation, Range<Double>>
+
+    init(hike: Hike, path: KeyPath<Hike.Observation, Range<Double>>) {
+        self.hike = hike
+        self.path = path
+        print(path.superDescription)
+    }
     
     var color: Color {
+        print(path.superDescription)
         switch path {
         case \.elevation:
             return .gray
@@ -43,27 +50,47 @@ struct HikeGraph: View {
             return .black
         }
     }
-    
-    var body: some View {
+
+    func graph(proxy: GeometryProxy) -> some View {
+
         let data = hike.observations
         let overallRange = rangeOfRanges(data.lazy.map { $0[keyPath: self.path] })
         let maxMagnitude = data.map { magnitude(of: $0[keyPath: path]) }.max()!
         let heightRatio = (1 - CGFloat(maxMagnitude / magnitude(of: overallRange))) / 2
 
-        return GeometryReader { proxy in
-            HStack(alignment: .bottom, spacing: proxy.size.width / 120) {
-                ForEach(data.indices) { index in
-                    GraphCapsule(
-                        index: index,
-                        height: proxy.size.height,
-                        range: data[index][keyPath: self.path],
-                        overallRange: overallRange)
-                    .colorMultiply(self.color)
-                    .transition(.slide)
-                    .animation(.ripple(index: index))
-                }
-                .offset(x: 0, y: proxy.size.height * heightRatio)
+        struct Info: Identifiable {
+            let index: Int
+            let range: Range<Double>
+            var id: String { "\(index) \(range)" }
+        }
+
+        let infos = data.enumerated().map { index, observation in
+            Info(index: index, range: observation[keyPath: self.path])
+        }
+
+        func capsule(proxy: GeometryProxy, info: Info) -> some View {
+            print("CAPSULE", index)
+            return GraphCapsule(
+                index: info.index,
+                height: proxy.size.height,
+                range: info.range,
+                overallRange: overallRange)
+                .colorMultiply(self.color)
+                .transition(.slide)
+                .animation(.ripple(index: info.index))
+        }
+
+        return HStack(alignment: .bottom, spacing: proxy.size.width / 120) {
+            ForEach(infos) { info in
+                capsule(proxy: proxy, info: info)
             }
+                .offset(x: 0, y: proxy.size.height * heightRatio)
+        }
+    }
+    
+    var body: some View {
+        GeometryReader { proxy in
+            self.graph(proxy: proxy)
         }
     }
 }