diff --git a/.github/workflows/scheduler_daily.yml b/.github/workflows/scheduler_daily.yml
index dadc4254..807ae660 100644
--- a/.github/workflows/scheduler_daily.yml
+++ b/.github/workflows/scheduler_daily.yml
@@ -54,6 +54,7 @@ jobs:
     - name: ☯️ Cache dojo logos in Japan
       run: |
         bundle exec ruby cache_dojo_logos.rb
+        bundle exec rake cache_data_as_yaml
 
     - name: 📍 Generate DojoMap from Earth/Japan data
       run: |
@@ -65,13 +66,24 @@ jobs:
           git config --global user.name  "Yohei Yasukawa"
           git config --global user.email "yohei@yasslab.jp"
           git checkout main
+
+          # Gems may update automatically
           git add Gemfile.lock
+
+          # Cache responses from Japan/Clubs APIs
           git add dojos_earth.json
           git add dojos_japan.json
           git add events_japan.json
           git add images/dojos
+          git add _data/earth.yml
+
+          # Save GeoJSON data to render DojoMap
           git add dojos.geojson
+
+          # Commit changed files above
           git commit -m '🤖 Upsert Earth/Japan data for DojoMap'
+
+          # Git pull/push the commit to deploy
           git pull origin main
           git push origin main
         fi
diff --git a/Rakefile b/Rakefile
index e9777484..11332143 100644
--- a/Rakefile
+++ b/Rakefile
@@ -5,6 +5,7 @@ desc 'Get CoderDojo data on the Earth via Raspberry Pi Clubs API'
 task(:get_data_from_earth)  { ruby 'get_data_from_earth.rb'  }
 task(:get_data_from_japan)  { ruby 'get_data_from_japan.rb'  }
 task(:cache_dojo_logos)     { ruby 'cache_dojo_logos.rb'     }
+task(:cache_data_as_yaml)   { ruby 'cache_data_as_yaml.rb'   }
 task(:upsert_dojos_geojson) { ruby 'upsert_dojos_geojson.rb' }
 
 # GitHub - gjtorikian/html-proofer
diff --git a/_data/.gitkeep b/_data/.gitkeep
new file mode 100644
index 00000000..e69de29b
diff --git a/_data/earth.yml b/_data/earth.yml
new file mode 100644
index 00000000..e69de29b
diff --git a/cache_data_as_yaml.rb b/cache_data_as_yaml.rb
new file mode 100755
index 00000000..7bf6ebfb
--- /dev/null
+++ b/cache_data_as_yaml.rb
@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+require 'json'
+require 'yaml'
+require 'fileutils'
+
+# This script caches the Clubs API's data as YAML format.
+# Earth data: from RasPi's Clubs API: https://clubs-api.raspberrypi.org
+EARTH_YAML_PATH = '_data/earth.yml'
+
+# Ensure _data directory exists
+FileUtils.mkdir_p('_data')
+
+# Load Earth data (use string keys, not symbols)
+dojos_earth = JSON.load(File.read('dojos_earth.json'),
+                   nil,
+                   symbolize_names:  false,
+                   create_additions: false)
+
+# Save all Earth data as YAML
+IO.write(EARTH_YAML_PATH, dojos_earth.to_yaml)
+puts "✅ Cached #{dojos_earth.size.to_s.rjust(4)} Earth dojos to #{EARTH_YAML_PATH}"
+
+# Count Japan dojos for information
+dojos_japan = dojos_earth.select { |dojo| dojo['countryCode'] == 'JP' }
+puts "   (Incl. #{dojos_japan.size.to_s.rjust(4)} Japan's active/inactive dojos)"
+
+puts
+puts "Finished caching JSON data as YAML."
+puts
diff --git a/earth.json b/earth.json
new file mode 100644
index 00000000..441b1df5
--- /dev/null
+++ b/earth.json
@@ -0,0 +1,4 @@
+---
+layout: none
+---
+{{ site.data.earth | jsonify }}
\ No newline at end of file
diff --git a/japan.json b/japan.json
new file mode 100644
index 00000000..1b2f6ea8
--- /dev/null
+++ b/japan.json
@@ -0,0 +1,4 @@
+---
+layout: none
+---
+{{ site.data.earth | where: "countryCode", "JP" | jsonify }}
\ No newline at end of file