A "Natural Discovery Package" covering Istanbul, Bursa, Sapanca, and Masukiye sounds like a fantastic exploration of diverse landscapes and cultural experiences. Here's a suggested itinerary for a comprehensive 4-day package:
2 nights hotel in Istanbul 5 Star La Quinta by Wyndham Istanbul
1 nights hotel in Bursa Almira Hotel
Professional English-speaking tour guides
3 open buffet breakfasts
3 Lunch
Arrival airport transfer from Istanbul Airport
Transportation in a fully air-conditioned, non-smoking coach
Return transfer to Istanbul Ataturk airport
Guided Bursa Day Tour Included Cable Car
Guided Sapanca and Masukiye Tour
Guided Istanbul Bosphorus cruise and shopping tour
All entrance fees mentioned in the itinerary
International flights
Insurance: All types
Turkey entry visa
Dinner
Tipping
City tax
Hotel room taxes
Items of a personal nature such as alcoholic drinks, cold drinks, laundry
Any others expenses which are not mentioned at the included section
For travellers!