This former tug has been moored for years on the Spanish side of the Rio Guadiana, south of San Lucar de Guadiana(ESP)/Alcoutim(PRT), here: http://tinyurl.com/jnu72uw

SINBAD was brought to the Guadiana soon after she went aground at La Linea, next to Gibraltar in 2004:
http://www.shipspotting.com/gallery/photo.php?lid=117149
A few years ago she was for sale (the wheelhouse painted up with a Portuguese mobile number) but presumably now sold as has now had some new paint.

[from Piet van Damme's "TugList"]
49 GRT, 0 NRT, L17,75m, B5,00m, Dr2,00m, Dp2,55m (58'3"x16'x7') - ice
iron, 1 cpp, steam eng., 120ihp (made 1898, from previous LÅNGRÖR I)
re-engined 1956 diesel Skandia, 240bhp
re-engined 1966 diesel 4t 8cyl MWM type TRSHS-526A, 500bhp

LÅNGRÖR I
1928: Built by "Mohögs Mek. Verkstad A/B" at Sundsvall (SWE) (YN 15)
(designed by "A/B Mohogs")
1928: delivered to "Långrörs A/B" at Söderhamn (SWE)
(SWE flag, ON 12848, c/s SKAW)
1931: To "Marma Sågverks A/B" at Söderhamn (SWE)
1933: To "Marma-Långrörs A/B" at Söderhamn (SWE)
1954: To Sigurd Närlund & Erik Wahlbeck at Sandarne (SWE)
1956: re-engined diesel Skandia, 240bhp, renamed SVEN
195x: hired to "Ångfartygs A/B Grogg" at Stockholm (SWE)
1966: To Erik Wahlbeck at Stockholm (SWE)
1966: re-engined diesel 4t 8cyl MWM type TRSHS-526A, 460bhp
1981: renamed SVENNE (?or SVENNE AF WAHLBACK ?)
1991: To S.G. Videfors at Stockholm (SWE),renamed SINBAD
1997: To "Atlantic Navigating & Trading Co" at Gibraltar (GIB)
(GBR flag, ON SSR91254)
1998 ??: To (Peter Moyles/Stoyles ??), converted to houseboat, moored near Gibraltar airport
2004 -03/05: ran aground at La Linea (ESP), refloated undamaged
2005: put for sale on the Rio Guadiana (PRT side)
by 2012: moored in Rio Guadiana (ESP side), ca.3 miles S. of Alcoutim