Like the amazing Águas Livres Aqueduct and the beautiful Mãe d’Água das Amoreiras this reservoir is not on the usual itinerary for visitors to Lisboa. Even those who are fortunate enough to find the tiny but lovely garden of Príncipe Real may not notice it is here. We though knew exactly where we were going.
When it was in use the waters would have spouted from a lake above its roof in the middle of the garden; airing the water before it was returned to the reservoir chamber below. These days there is no water spouting above, which may be a shame for those above ground but is a life saver for us water adventurers. As if the water was still spouting we would not be able to explore this glorious Lisboa secret.

You enter by the way of these stairs, and immediately find yourself in what feels like a cavernous space, especially if, like us, you arrive at at time when no-one apart from the guard is there. This Lisbon secret though is a significantly smaller construction than the Mãe d’Água das Amoreiras reservoir.
There are 31 pillars in total, and each is more than nine metres tall. The space, like the lake above, is octagonal, not that I realised at the time. I was too busy appreciating its overall beauty rather than the some of the architectural details! I was though fascinated by how it worked. Unfortunately there are not that many information points inside. It is more a photographers dream than information resource for a would-be water engineer. Thank goodness I was with MrB who was able to answer many of my questions.
I did however pick up that this 19th century reservoir was designed by a Frenchman and was once fed by Águas Livres Aqueduct. It was in operational use up until 1949, and has been a museum since the mid 1990s. There are also water galleries here, which lead from the reservoir to fountains and other water collection points in Lisboa. One of which, the Loreto Gallery, is open to the public.
Guided tours of the Loreto Gallery must be booked in advance, and there is limited availability. We had decided even before we arrived we were not too worried about exploring a water tunnel, and having seen the entrance were pleased we hadn’t. Not only are hard hats with torches essential (and provided) but suitable footwear is vital too. We spotted there was at least a few inches of water in the tunnel and the ground was uneven. Far better we think to watch this video instead. If though you are more adventurous than us (Jo?!), do let me know how you get on.
Fascinating and so much photographic potential, all those frames, light, shade and patterns – far preferable than a dark damp tunnel!
Exactly! And the tunnel is narrow too.
I prefer being in the garden rather than underground. I’ll leave this kind of exploring to you and Jo and Carol 🙂
You’d been very happy as bordering the garden there was a farmer’s market and a book fair!
Oh, yes, I’d have been very happy there.
I prefer heights to holes in the ground but I’m sure its interesting. Let’s see if Jo goes 🙂
I’m relying on her!!
Interesting clicks! Seeing it through ur lens😃
Glad you’ve enjoyed. It was the final water museum we visited, and was a perfect end to a fascinating few days
Very interesting Becky. You and Mr B should return to explore the tunnel when suitably equipped.
Hmmmm, not sure I’ll ever get him down it!!!
Next time! 🙂 🙂
I’m going to remember you said this! Do you know when you’re going to Lisboa next? I’ve got a Porto trip planned in December 😊
Not a clue! Still half hoping to meet Cathy in Porto last week in October but that’s a hectic one cos family will be out there. Checking out now, hon. See you soon 🙂 🙂
Ooh, go Jo! I like my virtual walks with you as you always have so many photos!!
You have to go now Jo!
😀😀
Go, on, you know you can’t resist. Just make sure you wear appropriate footwear. None of that flip flop rubbish!
A girl’s nothing without her flipflops Jude! Glorious here but Internet not good. Enjoying the disconnect but sending hugs 😃 xx
Hugs received, now how’s about sending me that weather?
You’re a hard task mistress! How’s the roof going? 😃
Glass installed today in the wind and the rain, bless them. Still got finishing touches to do as well as painting inside and out. But the room looks a lot bigger now.
Sending us!!!
Wonderful great final!
😁
I’d like to do that tour of the tunnel. It sounds very adventurous.
Ooh I’d love it if a fellow blogger did it. When can we get you to Lisboa?!
It’s tempting! Portugal has long been on my list of must see places. One day…
We’ll be here waiting ☺️
I’ll keep that in mind, both you and Jo. 😀😀
A good day out Becky!