diff --git a/.github/workflows/main_macos.yml b/.github/workflows/main_macos.yml
new file mode 100644
index 0000000..9575152
--- /dev/null
+++ b/.github/workflows/main_macos.yml
@@ -0,0 +1,39 @@
+name: integration_test_macos
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build-macos:
+    runs-on: macos-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+
+      - name: Setup Mambaforge (macOS arm64)
+        uses: conda-incubator/setup-miniconda@v2
+        with:
+          miniforge-variant: Mambaforge
+          miniforge-version: latest       
+          architecture: arm64
+          python-version: 3.10             
+          activate-environment: false
+          auto-update-conda: true
+
+      - name: Create Conda Environment
+        run: |
+          # Now `mamba` is on PATH
+          mamba create -n marine_environment python=3.10 -y
+          mamba env update -n marine_environment --file marine_environment2.yaml
+
+      - name: Run Integration Tests
+        run: |
+          conda init bash
+          CONDA_BASE=$(conda info --base) ; source $CONDA_BASE/etc/profile.d/conda.sh
+          conda activate marine_environment
+          cd tests
+          bash integration_tests_run.sh $(which python)