There are many tour companies in Bodrum which organise daily or short trips to nearby ancient sites like Ephesus, village tours, daily boat trips, diving tours etc. The tour companies gather around the main street of Bodrum town and are open till late hours.

Here are a few companies that you might have a look:

Bodrum Tour: Mentioned in the Bodrum Pages website.
tel: +90 252 313 78 64

Director Tour: One of the oldest and main agencies in Bodrum.
tel: +90 252 316 06 18-19 fax:+90 252 316 06 17
e-mail:info@directortour.com / info@directortour.com
Crystal Tours:

Marinair: Daily sightseeing tours organized every week, from Marmaris on Tuesday, from Bodrum on Wednesday, from Antalya on Thursday. Transportation is by sea-plane which makes it possible to travel to the far sightseeing destinations like Selçuk (Ephesus) or Antalya in minutes. Best way to save time and energy.Reservations must be made 24 hours prior to flight time. Please also ask if they can pick you up from the hotel by plane.
Istanbul tel:+90 212 663 18 29 fax: 0212 574 01 47
e-mail:marinair@turk.net / atesh@bonair.com.tr

Sami Tours: Daily tours from Bodrum to Pamukkale,Ephesus,Dalyan,boat trips etc.tel: +90 252 316 10 48 / 316 18 48 / 316 1662 Fax:316 2838
e-mail:info@samigroup.com