Permanent claim record · Holland, Michigan

Tunnel Park in Holland features a 200-foot natural sand dune with a literal tunnel bored through it connecting the parking area to the Lake Michigan beach.

Verified

Raw value (vault-stripped)

{"tags":["tunnel-park","beaches","dunes"],"text":"Tunnel Park in Holland features a 200-foot natural sand dune with a literal tunnel bored through it connecting the parking area to the Lake Michigan beach.","category":"oddity"}

Predicate	trivia.fact
Subject	Holland, Michigan (place)
As of
Status	Verified
Source	West Michigan Tourism: Attractions, Landmarks & Regional Highlights — Perplexity Deep Research (March 2026) (trust 6.5/10)
Reference	—
Document hash	pending evidence-pack link
Provenance chain
Claim ID	7d99a404-07f7-4c50-b63a-0ae512eab10d