15 days, 14 nights in Dec. 2019, April, July-Aug. & Dec. 2020. Minimum age, 9. Highlights: From Windhoek to Namib-Naukluft Nat’l Park for tall sand dunes/Sesriem Canyon for cheetahs in conservation center/flamingos at Walvis Bay/Swakopmund/Damaraland, home to desert elephants, meerkats/night game viewing in Etosha/camp on private farm. From London, £2,999-£3,549 ($3,660-$4,333) ppdo. Land only, £1,699-£1,749 ($2,075-$2,135). Single supp., £230 ($281)....

16 days, 15 nights. The Arctic on 150-passenger M/V Hondius. Departures June 29, July 9 & 19, 2020. “Moderately strenuous” pace 6-8 hours daily. Group limit, 25. Highlights: In Oslo (3 nights), Vigeland Park, medieval Old Town/board ship in Longyearbyen for a 10-night cruise/Zodiac outings to Ny-Ålesund, glaciers, Svalbard’s Seven Islands/Hinlopen Strait, home to blue whales, polar bears/Hornsund fjord. $13,195-$14,495 per person, double occupancy (ppdo), in July,...

15-day, 14-night round trip on the Danube. Departures April-June, Aug.-Oct. 2020. Highlights: Embark in Budapest, HUNGARY/in Kalocsa, Paprika Museum/in Pécs, 4th-century Christian mausoleum/130-foot-tall rock relief of Romanian hero in Iron Gates Gorge/in SERBIA, medieval Novi Sad/in CROATIA, Vukovar, Old Town of Osijek/in BULGARIA, cross Danubian Plain to Pleven/in Bucharest, ROMANIA, Palace of Parliament. $3,639-$7,359 ppdo (based on date). $3,639-$14,718 single (per date and availability...