diff --git a/src/firebase.js b/src/firebase.js
index 5caec49..3cbf934 100644
--- a/src/firebase.js
+++ b/src/firebase.js
@@ -1,8 +1,5 @@
-// Import the functions you need from the SDKs you need
-import { initializeApp } from "firebase/app";
-import { ref, child, get, set, getDatabase, onValue, push } from 'firebase/database';
-// TODO: Add SDKs for Firebase products that you want to use
-// https://firebase.google.com/docs/web/setup#available-libraries
+import { initializeApp, getApps, getApp } from 'firebase/app';
+import { getDatabase } from 'firebase/database';
 
 // Your web app's Firebase configuration
 const firebaseConfig = {
@@ -15,6 +12,8 @@ const firebaseConfig = {
   appId: import.meta.env.VITE_FIREBASE_APP_ID
 };
 
-// Initialize Firebase
-const app = initializeApp(firebaseConfig);
+// Initialize Firebase (with duplicate app prevention)
+const app = getApps().length === 0 ? initializeApp(firebaseConfig) : getApp();
+
+// Initialize Realtime Database and get a reference to the service
 export const db = getDatabase(app);
\ No newline at end of file
diff --git a/src/routes/viewimage/+page.svelte b/src/routes/viewimage/+page.svelte
deleted file mode 100644
index fe6f146..0000000
--- a/src/routes/viewimage/+page.svelte
+++ /dev/null
@@ -1,124 +0,0 @@
-<script>
-  import '../../app.css';
-  import Nav from '$lib/components/Nav.svelte';
-  import Button from '$lib/components/Button.svelte';
-  import { page } from '$app/state';
-  import { onMount } from 'svelte';
-  import { ref, get } from 'firebase/database';
-  import { db } from '../../firebase';
-
-  let memoryId = '';
-  /**
-   * @type {{ location: any; startDate: any; endDate: any; images: any; } | null}
-   */
-  let memory = null;
-  let tripId = '';
-
-  $: {
-    tripId = page.params.tripId;
-    memoryId = page.params.memoryId;
-  }
-
-  onMount(async () => {
-    if (tripId && memoryId) {
-      try {
-        const snapshot = await get(ref(db, `trips/${tripId}/memories/${memoryId}`));
-        if (snapshot.exists()) {
-          memory = snapshot.val();
-        } else {
-          console.error('No memory found');
-        }
-      } catch (error) {
-        console.error('Error fetching memory:', error);
-      }
-    }
-  });
-
-  let gradientColors = ['#e74c3c', '#f1c40f', '#2ecc71', '#3498db', '#9b59b6'];
-  $: gradientStyle = `
-    conic-gradient(
-      ${gradientColors.map((c, i) => `${c} ${i * 72}deg ${(i + 1) * 72}deg`).join(',')}
-    )
-  `;
-</script>
-
-<main>
-  <Nav activeTab="MyMemory" darkMode={true}/>
-
-  <div class="content">
-    {#if memory}
-      <div class="header">
-        <h1>{memory.location}</h1>
-        <p>{memory.startDate} - {memory.endDate}</p>
-      </div>
-
-      <div class="wheel-container">
-        <div class="gradient-wheel" style="background-image: {gradientStyle};"></div>
-      </div>
-
-      <div class="image-list">
-        {#each memory.images as img}
-          <!-- svelte-ignore a11y_img_redundant_alt -->
-          <img src={typeof img === 'string' ? img : URL.createObjectURL(img)} alt="Memory image" />
-        {/each}
-      </div>
-    {:else}
-      <p class="empty">Loading memory...</p>
-    {/if}
-  </div>
-</main>
-
-<style>
-  main {
-    height: 100vh;
-    background-color: var(--black);
-    font-family: 'Inter', sans-serif;
-    display: flex;
-    flex-direction: column;
-  }
-
-  .content {
-    flex: 1;
-    padding: 2rem 1rem;
-    overflow-y: auto;
-  }
-
-  .header {
-    text-align: center;
-    color: var(--white);
-    margin-bottom: 2rem;
-  }
-
-  .gradient-wheel {
-    width: 300px;
-    height: 300px;
-    margin: 2rem auto;
-    border-radius: 50%;
-    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
-  }
-
-  .wheel-container {
-    display: flex;
-    justify-content: center;
-  }
-
-  .image-list {
-    display: flex;
-    flex-direction: column;
-    align-items: center;
-    gap: 1rem;
-    margin-top: 2rem;
-  }
-
-  .image-list img {
-    width: 80%;
-    max-width: 500px;
-    border-radius: 12px;
-  }
-
-  .empty {
-    color: var(--gray-400);
-    text-align: center;
-    margin-top: 4rem;
-  }
-</style>
\ No newline at end of file
diff --git a/src/routes/viewimage/[tripId]/[memoryId]/+page.svelte b/src/routes/viewimage/[tripId]/[memoryId]/+page.svelte
index 5dce965..299064d 100644
--- a/src/routes/viewimage/[tripId]/[memoryId]/+page.svelte
+++ b/src/routes/viewimage/[tripId]/[memoryId]/+page.svelte
@@ -8,13 +8,10 @@
   import { db } from '../../../../firebase';
 
   let memoryId = '';
-  /**
-   * @type {{ location: any; startDate: any; endDate: any; images: any; } | null}
-   */
+  let tripOptions = [];
   let memory = null;
   let tripId = '';
 
-  // Subscribe to page store to get URL parameters
   $: {
     tripId = page.params.tripId;
     memoryId = page.params.memoryId;
@@ -23,24 +20,52 @@
   onMount(async () => {
     if (tripId && memoryId) {
       try {
-        const snapshot = await get(ref(db, `trips/${tripId}/memories/${memoryId}`));
-        if (snapshot.exists()) {
-          memory = snapshot.val();
+        const memorySnap = await get(ref(db, `trips/${tripId}/memories/${memoryId}`));
+        const tripSnap = await get(ref(db, `trips/${tripId}`));
+
+        if (memorySnap.exists() && tripSnap.exists()) {
+          memory = memorySnap.val();
+          const currentTrip = tripSnap.val();
+          const { lat, lng } = currentTrip.destination.location;
+
+          const allTripsSnap = await get(ref(db, 'trips'));
+          if (allTripsSnap.exists()) {
+            const allTrips = Object.entries(allTripsSnap.val());
+
+            tripOptions = allTrips
+              .filter(([id, trip]) => {
+                const loc = trip.destination?.location;
+                const hasMemories = trip.memories && Object.keys(trip.memories).length > 0;
+                const sameLocation =
+                  loc && Math.abs(loc.lat - lat) < 0.0001 && Math.abs(loc.lng - lng) < 0.0001;
+                return sameLocation && hasMemories;
+              })
+              .map(([id, trip]) => {
+                const memories = Object.values(trip.memories);
+                const latest = memories.sort((a, b) => new Date(b.startDate) - new Date(a.startDate))[0];
+                return {
+                  id,
+                  label: `${latest.startDate} - ${latest.endDate}`
+                };
+              });
+
+            const currentIndex = tripOptions.findIndex(t => t.id === tripId);
+            if (currentIndex > 0) {
+              const [current] = tripOptions.splice(currentIndex, 1);
+              tripOptions.unshift(current);
+            }
+          }
         } else {
-          console.error('No memory found');
+          console.error('Trip or memory not found');
         }
       } catch (error) {
-        console.error('Error fetching memory:', error);
+        console.error('Error fetching data:', error);
       }
     }
   });
 
   let gradientColors = ['#e74c3c', '#f1c40f', '#2ecc71', '#3498db', '#9b59b6'];
-  $: gradientStyle = `
-    conic-gradient(
-      ${gradientColors.map((c, i) => `${c} ${i * 72}deg ${(i + 1) * 72}deg`).join(',')}
-    )
-  `;
+  $: gradientStyle = `conic-gradient(${gradientColors.map((c, i) => `${c} ${i * 72}deg ${(i + 1) * 72}deg`).join(',')})`;
 </script>
 
 <main>
@@ -50,22 +75,35 @@
     {#if memory}
       <div class="header">
         <h1>{memory.location}</h1>
-        <p>{memory.startDate} - {memory.endDate}</p>
+      </div>
+
+      <div class="trip-switcher">
+        <div class="trip-switcher-inner">
+          {#each tripOptions as trip}
+            <button on:click={() => goto(`/memory/${trip.id}/${memoryId}`)}>
+              {trip.label}
+            </button>
+          {/each}
+        </div>
       </div>
 
       <div class="wheel-container">
         <div class="gradient-wheel" style="background-image: {gradientStyle};"></div>
       </div>
 
-      <div class="image-list">
-        {#each memory.images as img}
-          <!-- svelte-ignore a11y_img_redundant_alt -->
-          <img src={typeof img === 'string' ? img : URL.createObjectURL(img)} alt="Memory image" />
-        {/each}
+      <div class="image-preview">
+        {#if memory.images && memory.images.length > 0}
+          <h2>Images</h2>
+          <div class="image-grid">
+            {#each memory.images as img}
+              <img src={typeof img === 'string' ? img : URL.createObjectURL(img)} alt="memory image" />
+            {/each}
+          </div>
+        {:else}
+          <p class="no-image">No images uploaded.</p>
+        {/if}
       </div>
-    {:else}
-      <p class="empty">Loading memory...</p>
-    {/if}
+    {/if} <!-- ✅ 이 줄 빠지면 Svelte 에러 발생 -->
   </div>
 </main>
 
@@ -80,14 +118,70 @@
 
   .content {
     flex: 1;
-    padding: 2rem 1rem;
-    overflow-y: auto;
+    padding: 0 1rem 2rem 1rem;
+    position: relative;
+    display: flex;
+    flex-direction: column;
   }
 
   .header {
-    text-align: center;
+    padding-top: 2rem;
+    padding-left: 1rem;
+    background-color: var(--black);
     color: var(--white);
-    margin-bottom: 2rem;
+  }
+
+  .header h1 {
+    font-size: 2rem;
+    font-weight: 600;
+    margin: 0;
+  }
+
+  .trip-switcher {
+    width: 100%;
+    text-align: center;
+    overflow: hidden;
+    padding-top: 1.5rem;
+  }
+
+  .trip-switcher-inner {
+    display: flex;
+    overflow-x: auto;
+    scroll-snap-type: x mandatory;
+    scroll-behavior: smooth;
+    -webkit-overflow-scrolling: touch;
+    gap: 1rem;
+    padding: 0.5rem;
+  }
+
+  .trip-switcher-inner::-webkit-scrollbar {
+    width: 10px;
+    height: 4px;
+  }
+
+  .trip-switcher-inner::-webkit-scrollbar-thumb {
+    background: var(--white);
+    border-radius: 2px;
+  }
+
+  .trip-switcher-inner::-webkit-scrollbar-track {
+    background: transparent;
+  }
+
+  .trip-switcher button {
+    flex: 0 0 auto;
+    background-color: white;
+    border: 1px solid var(--gray-200);
+    padding: 0.5rem 1rem;
+    border-radius: 8px;
+    font-size: 0.95rem;
+    cursor: pointer;
+    white-space: nowrap;
+    transition: color 0.3s ease;
+  }
+
+  .trip-switcher button:hover {
+    background-color: var(--gray-100);
   }
 
   .gradient-wheel {
@@ -103,23 +197,31 @@
     justify-content: center;
   }
 
-  .image-list {
-    display: flex;
-    flex-direction: column;
-    align-items: center;
+  .image-preview {
+    padding: 1rem 2rem;
+    color: white;
+  }
+
+  .image-preview h2 {
+    font-size: 1.25rem;
+    margin-bottom: 0.75rem;
+  }
+
+  .image-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
     gap: 1rem;
-    margin-top: 2rem;
   }
 
-  .image-list img {
-    width: 80%;
-    max-width: 500px;
-    border-radius: 12px;
+  .image-grid img {
+    width: 100%;
+    border-radius: 8px;
+    object-fit: cover;
+    aspect-ratio: 1 / 1;
   }
 
-  .empty {
+  .no-image {
+    font-size: 0.95rem;
     color: var(--gray-400);
-    text-align: center;
-    margin-top: 4rem;
   }
-</style> 
\ No newline at end of file
+</style>
\ No newline at end of file