diff --git a/src/modules/activities/components/ActivityMap.vue b/src/modules/activities/components/ActivityMap.vue
index 9448bde..06f6a69 100644
--- a/src/modules/activities/components/ActivityMap.vue
+++ b/src/modules/activities/components/ActivityMap.vue
@@ -15,6 +15,7 @@ const router = useRouter()
 const mapContainer = ref<HTMLElement | null>(null)
 let map: L.Map | null = null
 let markerGroup: L.LayerGroup | null = null
+let hasFittedBounds = false
 
 // Fix Leaflet default icon paths (broken by bundlers)
 const defaultIcon = L.icon({
@@ -90,8 +91,9 @@ function updateMarkers() {
     markerGroup.addLayer(marker)
   }
 
-  // Fit bounds if there are markers
-  if (geoActivities.length > 0) {
+  // Fit bounds only on first load, not when new activities stream in
+  if (!hasFittedBounds && geoActivities.length > 0) {
+    hasFittedBounds = true
     const bounds = L.latLngBounds(
       geoActivities.map(a => [a.coordinates!.lat, a.coordinates!.lng] as L.LatLngTuple)
     )