diff --git a/Swim_Water b/Swim_Water
new file mode 100644
index 0000000..a39661d
--- /dev/null
+++ b/Swim_Water
@@ -0,0 +1,21 @@
+class Solution:
+    def swimInWater(self, grid: List[List[int]]) -> int:
+        m, n = len(grid), len(grid[0])
+        pq = [(grid[0][0], 0, 0)]
+        directions = [(0, 1), (1, 0), (0, -1), (-1, 0)]
+        seen = set()
+        
+        while pq:
+            max_d, r, c = heapq.heappop(pq)
+            if (r, c) in seen: continue
+            seen.add((r, c))
+            if r == m-1 and c == n-1:
+                return max_d
+            
+            for dr, dc in directions:
+                nr, nc = r + dr, c + dc
+                if 0 <= nr < m and 0 <= nc < n and (nr, nc) not in seen:
+                    new_d = max(max_d, grid[nr][nc])
+                    heapq.heappush(pq, (new_d, nr, nc))
+        
+        return -1