Tours

10 days/nine nights. Highlights: San Francisco catacombs in Lima/fly to Cusco/tour Pisac for handicrafts/Inca-built Ollanta/archaeological site of Ollantaytambo/train to Machu Picchu/Sacsayhuaman, Kenko and Tampu sites. Land and internal air, $2,629. Single supp., $1,229. Sol International (Kodak, TN; 800/765-5657).

15 days/13 nights. Highlights: From Glasgow, SCOTLAND, visit Loch Lomond, Cawdor Castle/Edinburgh Castle, Holyrood Palace/ferry across the channel to NORTHERN IRELAND/Belfast/Giant’s Causeway/in IRELAND, Dingle Peninsula/Dublin. Land, from $2,650. Single supp., $785.

Brendan Vacations (Chatsworth, CA; 800/421-8446).

12 days/11 nights, Aug. 8-19, 2010. Highlights: FLAM and Viking Ships Museum, Oslo/day cruise to Sognefjord/Flam Railway through mountains/fjord tour on M/S White Lady/Andalsnes and Dovre railways to Trondheim/WWII air museum in Bodø. Land, $3,299. Single supp., $500.

Rail Travel Center (Putney, VT; 800/458-5394).

Eight-day/seven-night walking tour (six to eight miles per day) of FRANCE, starting June 6, Sept. 5 & Oct. 3, 2010. Highlights: Roman monuments in Alpilles Hills/ancient stone villages near Robion/walk through lavender fields to Cistercian Abbey of Sénanque. Land, $3,998. Single supp., $780.

Austin-Lehman Adventures (Billings, MT; 800/575-1540).

Eight-day/seven-night walking tour of CROATIA (“easy level”; longest day, four to six hours). Highlights: Krka National Park/Diocletian Palace in Split/Brac Island Folk Museum/oyster farm in Ston/Kolocep Island/Dubrovnik. Land, from $2,998. Single supp., $658.

Breakaway Adventures (Mt. Pleasant, SC; 800/567-6286).

22 days/21 nights, Oct. 29-Nov. 20, 2010. Highlights: In LAOS, cruise to Pak Ou caves/Vientiane/in Hanoi, VIETNAM, French Quarter, West Lake/karst caves in Tam Coc/floating village of Kenh Ga/hill tribes, Sunday market in Sapa/Halong Bay. From Los Angeles, $5,795. Single supp., $1,200. In

Focus with Michele Burgess (Huntington Beach, CA; 714/536-6104).

13 days/12 nights, Aug. 25-Sept. 6, 2010. Highlights: Semongoh Orangutan Rehab Centre/Longboat to Sarawak/millions of bats in Mulu National Park/in BRUNEI, capital city of Bandar Seri Begawan/Kinabatangan River safari/witness sea turtles hatching on Selingan Island. Land, $3,845. Single supp., $575.

Wildlife & Nature Travel (East Lansing, MI; 517/303-5394).

13 days. Be part of a volunteer team of scientists conducting a survey of leopards, cheetahs, caracals, etc., in the savannah of Namibia. No experience needed. Capture, collar and track big cats and study their behavior. Land, £1,730 (approx. $2,830).

Biosphere Expeditions (US branch: Longwood, FL; 800/407-5761).