Delaware Valley Tour An all-day tour of diners in the Delaware Valley will be held on June 19 by the Society for Commercial Archeology, a group based in Washington.

Several undeveloped caves are available for Adventure Caving (2 hours to all-day tours).

An all-day tour of locations mentioned in songs and stories by Isaac Bashevis Singer, Sholom Aleichem, Irving Howe and E. L. Doctorow.

"How about one with a transporter pad built in, for all us wimps who don't want to finish the all-day tour?"

Along with the Aspen Center for Environmental Studies, the foundation also cosponsors a "My Independence" all-day walking tour of the pass for adults that covers ecological topics in depth.

And who could blame her, with the room packed with television crews, newspaper reporters and photographers recording the second installment of what Mr. Gore calls "school days," his all-day tours of public schools.

Other companies run all-day tours for groups with specific interests and of widely varying sizes.

An all-day tour takes in two horse farms, a drive past the historic homes in the Gratz Park and downtown areas, and lunch; the afternoon is spent at the Kentucky Horse Park.

Other all-day tours include the historical and unspoilt island of Ganghwado (US$28) and white-water rafting excursions (US$49) out in the wilds of Gangwon-do.

But I didn't have much time to enjoy the perks, as my final two days in Brazil were dedicated to all-day tours of Rio de Janeiro.