Claudette Riley [email protected] Published 11:00 p.m. UTC May 25, 2018 A new attraction has opened at Fantastic Caverns, a ride-through cave just north of Springfield. The family-owned tourist destination recently constructed a boardwalk and elevated observation deck along the Little Sac River. The stretch overlooks the output of Indian Spring and its convergence with the river. MORE: Live alligators, pythons coming to Big Cedar Lodge ropes course According to a news release, the observation deck and boardwalk front 175 feet of the Little Sac River’s southern bank. Construction involved more than two miles of lumber and more than 15,000 nuts, bolts, screws and anchors. “It is a great addition to the property as we kick off the summer season this Memorial Day weekend,” said Fantastic Caverns General Manager Doug Campbell in a news release. A trail starts near the visitors center and parking lot and continues through a collapsed cave system and into the valley beneath the cave’s entrance and exit. The boardwalk begins at the river’s edge, near where the trail ends.