diff --git a/geemap/basemaps.py b/geemap/basemaps.py
index b814a3ded0..0662dd0d22 100644
--- a/geemap/basemaps.py
+++ b/geemap/basemaps.py
@@ -60,7 +60,7 @@
 # Custom WMS tile services.
 WMS_TILES = {
     "FWS NWI Wetlands": {
-        "url": "https://www.fws.gov/wetlands/arcgis/services/Wetlands/MapServer/WMSServer?",
+        "url": "https://fwspublicservices.wim.usgs.gov/wetlandsmapservice/services/Wetlands/MapServer/WMSServer?",
         "layers": "1",
         "name": "FWS NWI Wetlands",
         "attribution": "FWS",
diff --git a/geemap/foliumap.py b/geemap/foliumap.py
index 3288f271c5..2e7ffc263b 100644
--- a/geemap/foliumap.py
+++ b/geemap/foliumap.py
@@ -1501,20 +1501,21 @@ def add_osm_from_bbox(
 
     def add_points_from_xy(
         self,
-        data,
-        x="longitude",
-        y="latitude",
-        popup=None,
-        min_width=100,
-        max_width=200,
-        layer_name="Marker Cluster",
-        color_column=None,
-        marker_colors=None,
-        icon_colors=["white"],
-        icon_names=["info"],
-        angle=0,
-        prefix="fa",
-        add_legend=True,
+        data: Union[str, pd.DataFrame],
+        x: Optional[str] = "longitude",
+        y: Optional[str] = "latitude",
+        popup: Optional[List] = None,
+        min_width: Optional[int] = 100,
+        max_width: Optional[int] = 200,
+        layer_name: Optional[str] = "Marker Cluster",
+        color_column: Optional[str] = None,
+        marker_colors: Optional[List] = None,
+        icon_colors: Optional[List] = ["white"],
+        icon_names: Optional[List] = ["info"],
+        angle: Optional[int] = 0,
+        prefix: Optional[str] = "fa",
+        add_legend: Optional[bool] = True,
+        max_cluster_radius: Optional[int] = 80,
         **kwargs,
     ):
         """Adds a marker cluster to the map.
@@ -1530,13 +1531,20 @@ def add_points_from_xy(
             color_column (str, optional): The column name for the color values. Defaults to None.
             marker_colors (list, optional): A list of colors to be used for the markers. Defaults to None.
             icon_colors (list, optional): A list of colors to be used for the icons. Defaults to ['white'].
-            icon_names (list, optional): A list of names to be used for the icons. More icons can be found at https://fontawesome.com/v4/icons or https://getbootstrap.com/docs/3.3/components/?utm_source=pocket_mylist. Defaults to ['info'].
+            icon_names (list, optional): A list of names to be used for the icons. More icons can be found
+                at https://fontawesome.com/v4/icons or https://getbootstrap.com/docs/3.3/components/?utm_source=pocket_mylist. Defaults to ['info'].
             angle (int, optional): The angle of the icon. Defaults to 0.
             prefix (str, optional): The prefix states the source of the icon. 'fa' for font-awesome or 'glyphicon' for bootstrap 3. Defaults to 'fa'.
             add_legend (bool, optional): If True, a legend will be added to the map. Defaults to True.
+            max_cluster_radius (int, optional): The maximum radius that a cluster will cover from the central marker (in pixels).
+            **kwargs: Other keyword arguments to pass to folium.MarkerCluster(). For a list of available options,
+                see https://github.com/Leaflet/Leaflet.markercluster. For example, to change the cluster radius, use options={"maxClusterRadius": 50}.
         """
         import pandas as pd
 
+        if "maxClusterRadius" not in kwargs:
+            kwargs["maxClusterRadius"] = max_cluster_radius
+
         color_options = [
             "red",
             "blue",
@@ -1574,7 +1582,7 @@ def add_points_from_xy(
             )
 
         if color_column is not None:
-            items = sorted(list(set(df[color_column])))
+            items = list(set(df[color_column]))
         else:
             items = None
 
@@ -1615,16 +1623,16 @@ def add_points_from_xy(
         if y not in col_names:
             raise ValueError(f"y must be one of the following: {', '.join(col_names)}")
 
-        marker_cluster = plugins.MarkerCluster(name=layer_name).add_to(self)
+        marker_cluster = plugins.MarkerCluster(name=layer_name, **kwargs).add_to(self)
 
-        for row in df.itertuples():
+        for idx, row in df.iterrows():
             html = ""
             for p in popup:
-                html = html + "<b>" + p + "</b>" + ": " + str(getattr(row, p)) + "<br>"
+                html = html + "<b>" + p + "</b>" + ": " + str(row[p]) + "<br>"
             popup_html = folium.Popup(html, min_width=min_width, max_width=max_width)
 
             if items is not None:
-                index = items.index(getattr(row, color_column))
+                index = items.index(row[color_column])
                 marker_icon = folium.Icon(
                     color=marker_colors[index],
                     icon_color=icon_colors[index],
@@ -1636,7 +1644,7 @@ def add_points_from_xy(
                 marker_icon = None
 
             folium.Marker(
-                location=[getattr(row, y), getattr(row, x)],
+                location=[row[y], row[x]],
                 popup=popup_html,
                 icon=marker_icon,
             ).add_to(marker_cluster)