A Gruta dos Moinhos Velhos (juntamente com a Gruta da Pena e a Gruta da Contenda), faz parte de uma grande rede de galerias com mais de 11 Km de extensão, constituindo dos mais importantes sistemas subterrâneos do Maciço Calcário Estremenho. Caracteriza-se pela existência de dois coletores paragenéticos fósseis, de diâmetro aproximadamente decamétrico, com afluentes desenhando uma rede dendrítica e um conjunto de galerias semi-ativas de traçado dendrítico a norte e angulado a sul. A zona fóssil tem um desnível de 100 metros e a espessura da zona intermédia varia entre 80 metros a montante e 60 metros a jusante, circulando a água por galerias singenéticas, do quadrante norte para o quadrante sul, em direção à exsurgência da Gruta da Pena.

Podem definir-se quatro fases na evolução do sistema. A primeira é representada por galerias freáticas superficiais, de pequeno diâmetro, a segunda pelo coletor paragenético da Galeria Gémea, a terceira pela Galeria Grande e seus afluentes e a última pelas galerias ativas e semi-ativas dos andares inferiores.

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Compare 17 Farmstay in Porto de Mos with updated reviews, rates, and availability.

"Good eco friendly hotel. Close to great beaches and Obidos"

AED 538 total

includes taxes & fees

25 May - 26 May

"Beautiful property with all amenities, swimming pool, bbq, table footbal, ping pong. I celebrated my birthday with friends and we had an amazing time. Thanks again to Francisca and Carminda for all the communication and availability."

Seasonal outdoor pool, open 7:30 AM to 10:00 PM, sun loungers

AED 455 total

includes taxes & fees

12 May - 13 May

"Amazing hosts / staff and a beautiful property to relax at."

AED 588 total

includes taxes & fees

14 May - 15 May

"Beautiful, old, country farm that has been renovated and converted into a few private casitas that are fully appointed with anything one could need. The hosts could not be any more welcoming and gracious."

"Casa preciosa y bien cuidada. Jardín bonito y piscina vallada ideal con niños. Anfitriones muy atentos."

"It was nice to be away from the city but close to the beach, restaurants, grocery stores and many nearby towns to explore. The owners were very personable and helpful. We were given a list of delicious, favorite restaurants. We very much enjoyed our stay here!"

"Spacious and cozy, this farmhouse had everything we needed for our trip, The fireplace added a nice touch on cooler evenings, and the outdoor shower was super convenient after swimming, Highly recommend!"

AED 836 total

includes taxes & fees

16 May - 17 May

5 bedrooms, iron/ironing board, WiFi, bed sheets

AED 7,012 total

includes taxes & fees

19 May - 20 May

Deluxe Room, Garden View, Garden Area | Free cribs/infant beds, free WiFi, bed sheets, wheelchair access

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"What a really nice place to stay"

Seasonal outdoor pool, open 10:00 AM to 7:00 PM, pool umbrellas

"This is really great place Not fancy but it has everything you need and the location is amazing close to everything Great views of the castle The everyone was very helpful and friendly For sure going back "

AED 259 total

includes taxes & fees

3 Jun - 4 Jun