 Around 20-30 protesters took part in the action |
Police were called to a demonstration blocking the entrance to Pwllheli marina in north Wales on Saturday. Around 20-30 members of Welsh language pressure group Cymuned took part in the action.
Cymuned opposes Gwynedd council's decision to add an extra 300 moorings at the council-owned site.
The protest ended at around 1200 BST, and police said that a handful of protestors were to be reported for alleged obstruction.
At the same time as the Cymuned's action, there was a counter protest from people who support the plans, which they say will bring 20 new jobs for local people.
 | I support the development of Pwllheli marina for the simple reason that we owe the future generation something to look forward to |
Earlier this month, Cymuned's annual conference voted to oppose the plans over its fears that non-Welsh speakers will be attracted to the area.
The scheme, which has been backed by the board of Gwynedd council, is due to go before the full council on Thursday.
A police spokesman said vehicles had been used to block the entrance of the marina.
Richard Evans, the chairman of Cymuned's executive committe said that reports had shown "the damage the extension would do".
 Campaigners oppose plans to double the marina's capacity |
"We now feel we have no choice but to take action in order to reveal the real depth of feeling on this matter," he said.
"We are prepared to protest in this manner over and over again in the coming months."
Dwyfor's planning committee will consider a full application over the scheme in September.
Last-minute decision
Backers of the scheme include Pwllheli town councillor Ian Roberts, who said the scheme would bring jobs and benefit future generations.
"I support the development of Pwllheli marina for the simple reason that we owe the future generation something to look forward to," he said.
The development was proposed at the council meeting by development portfolio leader and Plaid Cymru president Dafydd Iwan. Plaid made a last-minute decision to back the scheme.
It is believed that 22 of Plaid's 28 Gwynedd Council members had initially rejected the proposals.
However, all but four are thought to have decided to support the expansion after an extra �1.5m to ease the impact of the development was proposed.