Up until the mid 1980's BP Oil used to transport a few tanks a week along their 1 1/2 mile branch from the mainline at Hamble Halt to their storage depot on the banks of the Solent. The original line is still visible has now been converted into a pleasant walkway.

These pictures of the diesel "Hunslet" train that used to run on the line are available by clicking on the picture here, provided with kind permission from Chris Nevard's "Railway Pix" enthusiasts site which contains interesting pictures of trains and steam traction from around the country.

link here