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About Us

Gilman's Lost River Caverns and store at the Cave have been in business continuously since 1930. Offering a full line of products for all aspects of jewelry making including findings, gem stones, metals and tools, lapidary and lapidary equipment, metal detectors and much more. Please don't hesitate to contact us with any questions you may have.

Hours of Operation

Open every day of the year except Thanksgiving, Christmas, New Years Day and ½ day Easter.

Date Hours

Summer Hours

(Memorial Day weekend through Labor Day)

9 A.M. - 6 P.M.

(Last cavern tour leaves at 6 P.M.)

Winter Hours
(Remainder of the Year)

9 A.M. - 5 P.M.

(Last cavern tour leaves at 5 P.M.)

New Years Day CLOSED
Thanksgiving CLOSED
Christmas CLOSED
Easter Noon - 5 P.M.


Adults $13.50
Children (3-12) $8.50
Please see below for group tour information.

Group Tours

Group rates are available for 15 or more people. Please call for details.


Time restrictions apply on weekends and holidays.

Please call for details.

Address Information

Mailing Address:

Lost River Caverns
PO Box M
Hellertown, PA 18055

Physical Address:

Lost River Caverns
726 Durham Street
Hellertown, PA 18055

Latitude:  40° 34.86' N
Longitude:  75° 19.83' W

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Hope to see you soon.

Telephone Information

Voice Local: 610-838-8767
Voice Toll Free: 888-529-1907
Fax: 610-838-2961

Email Information

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