Turkey offers some of the best tours and excursions in the Mediterranean — ancient cities, Bosphorus cruises, hot air balloons over Cappadocia and turquoise Aegean bays. Book online with instant confirmation. No prepayment required on most tours — pay on the day. BIOHACTOUR is a licensed Turkish travel agency (TÜRSAB A-14433) based in Istanbul, offering guided tours across all major resorts. Istanbul — Bosphorus cruise from €8, Hagia Sophia and Topkapi Palace skip-the-line tickets, evening dinner cruise with Turkish show from €34, walking tours of the Blue Mosque and Grand Bazaar. Private Bosphorus yacht rental from €33/hour. Ephesus — one of the best-preserved ancient cities in the world. Day trips available from Marmaris, Bodrum and Kusadasi from €38. Bodrum — St. Peter's Castle, Underwater Archaeology Museum, boat trips to Aegean bays, day trip to Kos Island by catamaran. Marmaris — Pamukkale hot springs and Cleopatra's Pool, jeep safari, scuba diving, boat trips along the Turkish Riviera. Antalya — Kaleiçi old town, Aspendos Roman theatre, rafting on Köprüçay River. Cappadocia — hot air balloon ride over fairy chimneys at sunrise, Red and Rose Valley hikes, Derinkuyu underground city. Prices shown per person.