Six Flags Super Calendar

A week-by-week calendar showing operating hours for all Six Flags Entertainment Group theme parks — including the former Cedar Fair parks. Data is scraped from the Six Flags internal API and stored locally in SQLite. Click any park to see its full month calendar and today's ride status.

Parks

24 theme parks across the US, Canada, and Mexico, grouped by region:

Region	Parks
Northeast	Great Adventure (NJ), New England (MA), Great Escape (NY), Darien Lake (NY), Dorney Park (PA), Canada's Wonderland (ON)
Southeast	Over Georgia, Carowinds (NC), Kings Dominion (VA)
Midwest	Great America (IL), St. Louis (MO), Cedar Point (OH), Kings Island (OH), Valleyfair (MN), Worlds of Fun (MO), Michigan's Adventure (MI)
Texas & South	Over Texas, Fiesta Texas (TX), Frontier City (OK)
West & International	Magic Mountain (CA), Discovery Kingdom (CA), Knott's Berry Farm (CA), California's Great America (CA), Mexico

Tech Stack

• Next.js 15 — App Router, Server Components, standalone output
• Tailwind CSS v4 — @theme {} CSS variables, no config file
• SQLite via better-sqlite3 — persisted in /app/data/parks.db
• Playwright — one-time headless browser run to discover each park's internal API ID
• Six Flags CloudFront API — https://d18car1k0ff81h.cloudfront.net/operating-hours/park/{id}?date=YYYYMM

Local Development

Prerequisites: Node.js 22+, npm

npm install
npx playwright install chromium

Seed the database

Run once to discover each park's internal API ID (opens a headless browser per park):

npm run discover

Scrape operating hours for the full year:

npm run scrape

Force a full re-scrape (ignores the 7-day staleness window):

npm run scrape:force

Debug a specific park + date

Inspect raw API data and parsed output for any park and date:

npm run debug -- --park kingsisland --date 2026-06-15

Output is printed to the terminal and saved to debug/{parkId}_{date}.txt.

Run the dev server

npm run dev

Open http://localhost:3000. Navigate weeks with the ← / → buttons, or pass ?week=YYYY-MM-DD directly. Click any park name to open its detail page.

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Deployment

The app uses Next.js standalone output. The SQLite database is stored in a Docker volume at /app/data.

docker compose up -d

Seed the database inside the container

The production image includes Playwright and Chromium, so discovery and scraping run directly against the container's volume:

docker compose exec web npm run discover
docker compose exec web npm run scrape

Or as a one-off against the named volume:

docker run --rm -v sixflagssupercalendar_park_data:/app/data \
  gitea.thewrightserver.net/josh/sixflagssupercalendar:latest \
  npm run scrape

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Data Refresh

The scraper skips any park + month combination scraped within the last 7 days. Run npm run scrape on a weekly schedule to keep data current. Parks or months not yet in the database show a — placeholder; parks with no open days in the displayed week are hidden from the calendar automatically.