Howth is not an off the beaten path place, but it is not in Malahide.
Howth is a pretty fishing and yachting port, about 15 km north-east of Dublin city centre. The little town lies on the north side of Howth Head, with steep winding streets going uphill from the harbour.
It is a popular daytrip from Dublin as it is a nice place to walk around in. You can walk around in the town and harbour and you can choose to make longer walks on paths around Howth Head. From the Summit you will get great views over Dublin Bay and all way to Wicklow Mountains (if the weather is nice).
Howth is a fishing centre so you will find fresh local catches on the menus in the restaurants and cafes.
Malahide and Howth can be visited on the same daytrip.
An austere Gothic revival church with a fine spire and entrance doorway. The church spire was not added until 1901 and a poem called "The Church without a Steeple" refers to St. Sylvester’s in its non-steeple days. Allegedly the spire was copied from St.Annes Church in Raheny. The two carved heads supporting the arch of the front door are St. Brigid and St. Columcille. It is said that the sculptor left St Brigid unfinished as the fee for his work did not satisfy his expectations.
Ammonite is a public sculpture for Malahide Marina. The Ammonite at Malahide, the female sea entity represented by the Fisher is holding the spiral form of an ammonite shell, the ammonite having become extinct by the end of the Cretaceous period.
The Baily Lighthouse is located in Howth, Howth's Head to be accurate which is on the southeastern part of the peninsula.
The lighthouse is accesible both by foot and public transport. But have in mind that it won't take you to the location, you'll have to get of at the last stop(at the top of the town) and go further up heading away from Howth itself.
You could also try walking from Howth but be carefull, the coastline is rough and labirynth like.
It might be a long distance to walk if you are not carefull and choose the wrong path, but this location is worth your effort, trust me.
It is surely one of the pretties sites I've ever seen, closed in by the cliffs, surrounded by the irish sea and luxurious villas. We arrived their when it was getting a bit dark, and the view of the Lighthouse light was beautifull (and very romantic!). If you like ocean view sceneries go and check out this Lighthouse, unfortunalety it is not possible to tour the inside :(