You all know how I love tugboats. This is one of my favorites. Just look at those massive exhaust pipes and imagine the power!
Zyana K Tug was built in 2016. Somewhere in my Pbase Galleries, I have a photo of the day she was delivered from the builder to the port.
The tugs all have real-time GPS locations if you want to photograph them.

Position Received: 5 minutes ago (2017-11-11 13:50 (UTC))
Vessel's Local Time: 2017-11-11 07:50 (UTC -6)
Area: USG - Gulf of Mexico
Latitude / Longitude: 29.3209591° / -94.7845306°
Status: Moored
Speed/Course: 0.1kn / -
http://www.marinetraffic.com/en/ais/details/ships/shipid:4061595/mmsi:367719610/imo:9794185/vessel:ZYANA_K#RP7wkEagc3Vtyb2Y.99