Printable $19.00 Williamsburg Walking Tours Voucher For Only $9.50. This voucher is valid on AFRICAN AMERICAN AND HISTORY TOURS ONLY. Reservations required. Call 757-634-2452 to book your tour in advance. Groups welcome. Please call to schedule. Good for up to one year upon consumer purchase. The value of the voucher must be used in one visit and not redeemable for cash. In the case of certificate voucher expiration, per law, the voucher still retains its initial purchase price of the promotional value. This voucher can not be used toward tips. Only 1 voucher may be purchased every 30 days. No change will be given back from this voucher. Reservations Required 24 hours in advance.