The Loango Trail connects Maracas Bay Village on the north coast to Maracas Valley on the southern side of the Northern Range. Hiking the Loango Trail is one of the most difficult hikes in Trinidad due to the steep climb from Maracas Bay to the top of the ridge. The trail heading down into Maracas Valley is much gentler and seems like a stroll compared to the other side. You can check out the Trail Map of the hike in the given link.
The trail starts off the Grand Fond Road in Maracas Bay Village (to get to Maracas Bay, click on the following link: Getting Around: North Coast Road). As you pass along the beachfront in Maracas, you will see a gas station at the eastern end of the beach on the right hand side of the North Coast Road (at this point). Turn onto Grand Fond Road directly before the gas station and continue heading south until you meet the intersection shown in the picture below. Take the road on the right immediately after the bridge.
On the side road, keep going until you reach the end of the road (refer to pic below). At that point, cross the barrier onto an unpaved track (the paved road on the left goes uphill to a house). I believe the tree right after the barrier is a pomerac tree if my memory is right. Anyway, follow the track around a bend to the left in front of a bamboo patch. A small stream flows next to the track after the barrier as well.
At the end of the track, there is a confluence (meeting point of water courses) as shown below. The trailhead is located directly between these streams. Take the trail heading up and you will come upon shortly to the first junction. It is actually a T-junction and to get to Maracas Valley, take the trail on the right. From there, it should be easy to follow the trail but be prepared for a gruelling hike.