Gareloch is a sea loch located in Scotland, specifically in the Argyll and Bute council area. It stretches approximately 8 miles (13 kilometers) and is known for its scenic beauty, surrounded by hills and forests. The loch is part of the Firth of Clyde and is situated near the town of Helensburgh. The area around Gareloch is popular for outdoor activities such as sailing, fishing, and hiking. The loch is also home to various wildlife, including birds and marine life. Additionally, the nearby Royal Navy base at HMNB Clyde plays a significant role in the local economy and community.