diff --git a/qml/pages/CalendarPage.qml b/qml/pages/CalendarPage.qml
new file mode 100644
index 0000000..e1b8d26
--- /dev/null
+++ b/qml/pages/CalendarPage.qml
@@ -0,0 +1,96 @@
+import QtQuick 2.0
+import Sailfish.Silica 1.0
+import "../js/tides.js" as Tides
+
+// Calendario maree: i prossimi 30 giorni con le ore di alta e bassa marea.
+Page {
+    id: page
+
+    property var port
+
+    SilicaListView {
+        id: list
+        anchors.fill: parent
+        model: ListModel { id: dayModel }
+
+        header: PageHeader {
+            title: page.port ? page.port[0] : ""
+            description: qsTr("Next 30 days — high and low tides")
+        }
+
+        delegate: Item {
+            width: parent.width
+            height: model.isDay ? Theme.itemSizeSmall : Theme.itemSizeSmall * 0.8
+
+            // riga del giorno
+            Rectangle {
+                visible: model.isDay
+                anchors.fill: parent
+                color: Theme.rgba(Theme.highlightBackgroundColor, 0.2)
+                Label {
+                    text: model.day
+                    anchors.left: parent.left
+                    anchors.leftMargin: Theme.horizontalPageMargin
+                    anchors.verticalCenter: parent.verticalCenter
+                    color: Theme.highlightColor
+                    font.pixelSize: Theme.fontSizeSmall
+                }
+            }
+
+            // riga evento (alta/bassa)
+            Label {
+                visible: !model.isDay
+                text: model.kind === "high" ? "▲" : "▼"
+                color: model.kind === "high" ? Theme.highlightColor : Theme.errorColor
+                font.pixelSize: Theme.fontSizeSmall
+                anchors.left: parent.left
+                anchors.leftMargin: Theme.horizontalPageMargin
+                anchors.verticalCenter: parent.verticalCenter
+            }
+            Label {
+                visible: !model.isDay
+                text: model.time
+                color: Theme.primaryColor
+                anchors.left: parent.left
+                anchors.leftMargin: Theme.horizontalPageMargin + 36
+                anchors.verticalCenter: parent.verticalCenter
+            }
+            Label {
+                visible: !model.isDay
+                text: model.height
+                color: Theme.secondaryColor
+                font.pixelSize: Theme.fontSizeSmall
+                anchors.right: parent.right
+                anchors.rightMargin: Theme.horizontalPageMargin
+                anchors.verticalCenter: parent.verticalCenter
+            }
+        }
+
+        VerticalScrollDecorator {}
+    }
+
+    Component.onCompleted: build()
+
+    function build() {
+        dayModel.clear()
+        if (!port) {
+            console.log("[tide] calendar: port undefined")
+            return
+        }
+        console.log("[tide] calendar build:", port[0])
+        var now = new Date()
+        for (var g = 0; g < 30; g++) {
+            var d = new Date(now.getFullYear(), now.getMonth(), now.getDate() + g)
+            var ex = Tides.extrema(port, d, 1)
+            dayModel.append({ isDay: true, day: Tides.fmtDate(d.getTime()),
+                              time: "", kind: "", height: "" })
+            for (var i = 0; i < ex.length; i++) {
+                dayModel.append({ isDay: false, day: "",
+                                  time: Tides.fmtHM(ex[i].t),
+                                  kind: ex[i].kind,
+                                  height: Tides.fmtH(ex[i].h, appSettings.unit) })
+            }
+        }
+        console.log("[tide] calendar giorni:", 30, "righe:", dayModel.count)
+    }
+}
diff --git a/qml/pages/DetailPage.qml b/qml/pages/DetailPage.qml
index 0cf9511..9206f61 100644
--- a/qml/pages/DetailPage.qml
+++ b/qml/pages/DetailPage.qml
@@ -49,6 +49,12 @@ Page {
                        { port: port, portIndex: Tides.PORTS.indexOf(port), custom: false })
     }
 
+    function openCalendar() {
+        console.log("[tide] openCalendar:", page.port ? page.port[0] : "undefined")
+        pageStack.push(Qt.resolvedUrl("CalendarPage.qml"),
+                       { port: page.port })
+    }
+
     function refresh() {
         if (!port) {
             console.log("[tide] refresh: port UNDEFINED")
@@ -378,6 +384,11 @@ Page {
                 pageStack.replace(Qt.resolvedUrl("MainPage.qml"))
             }
         }
+        MenuItem {
+            text: qsTr("30-day calendar")
+            visible: page.port !== undefined
+            onClicked: page.openCalendar()
+        }
         MenuItem {
             text: qsTr("Settings")
             onClicked: pageStack.push(Qt.resolvedUrl("SettingsPage.qml"))
diff --git a/translations/harbour-tide.ts b/translations/harbour-tide.ts
index 5d9a793..4585c9d 100644
--- a/translations/harbour-tide.ts
+++ b/translations/harbour-tide.ts
@@ -22,6 +22,7 @@
 </context>
 <context>
     <name>DetailPage</name>
+    <message><source>30-day calendar</source><translation type="unfinished"></translation></message>
     <message><source>lat %1°</source><translation type="unfinished"></translation></message>
     <message><source>📍 Nearest port: %1 — %2 · ±%3 m</source><translation type="unfinished"></translation></message>
     <message><source>24 h</source><translation type="unfinished"></translation></message>
@@ -69,4 +70,8 @@
     <name>CoverPage</name>
     <message><source>No port selected</source><translation type="unfinished"></translation></message>
 </context>
+<context>
+    <name>CalendarPage</name>
+    <message><source>Next 30 days — high and low tides</source><translation type="unfinished"></translation></message>
+</context>
 </TS>
diff --git a/translations/harbour-tide_it.ts b/translations/harbour-tide_it.ts
index 142d44c..dfc4bb3 100644
--- a/translations/harbour-tide_it.ts
+++ b/translations/harbour-tide_it.ts
@@ -22,6 +22,7 @@
 </context>
 <context>
     <name>DetailPage</name>
+    <message><source>30-day calendar</source><translation>Calendario 30 giorni</translation></message>
     <message><source>lat %1°</source><translation>lat %1°</translation></message>
     <message><source>📍 Nearest port: %1 — %2 · ±%3 m</source><translation>📍 Porto più vicino: %1 — %2 · ±%3 m</translation></message>
     <message><source>24 h</source><translation>24 h</translation></message>
@@ -69,4 +70,8 @@
     <name>CoverPage</name>
     <message><source>No port selected</source><translation>Nessun porto selezionato</translation></message>
 </context>
+<context>
+    <name>CalendarPage</name>
+    <message><source>Next 30 days — high and low tides</source><translation>Prossimi 30 giorni — alte e basse maree</translation></message>
+</context>
 </TS>