Most hotels will have sit-down toilets, though hole-in-the-ground toilets are common also. Toilet paper is often unavailable, especially on the train, so it is a good idea to bring some with you! In most bathrooms, you can flush paper down the toilet but in parts of Istanbul’s old city, flushing paper down the toilet could cause flooding, in which case you must dispose of paper in a bin. There are often signs in bathrooms that will advise you on the policy. Some bathrooms charge a fee to enter so it’s good to keep some small coins on you as well.