Is it a mirage? 海市蜃楼？

I climbed up the hill behind my house, the hill is not high, but it will take me about 30 minutes to reach the top, the slope is relatively long and slow. Climbing to the top, you can see the surface of the Sea, that is Donggang. I suddenly found that there were hills in the distance of the sea, is this really a mirage? I'm confused. This is the picture I took with my cell phone, without any modification. The hill on the sea is really like a mirage, isn't it?

Camera used : iphone6
Location : Dalian

我爬上我家后面的小山， 小山不高，但是爬上去需要30分钟，坡比较缓，比较长，爬到上面以后，就能看到北面的大海，那边是东港，突然发现，远处的海面上有小山，难道这真的是海市蜃楼吗？我迷惑了，这是我用手机拍的照片， 没加任何修饰，海面上的小山，真的有种海市蜃楼的感觉，不是吗？

My recent post here
A beautiful garden in the air 美的拥抱- 空中花园
Yellow Crane Tower 天下江山第一楼- 黄鹤楼
The first heavy snow in 2018 好大一场雪
The busiest and most prosperous street of Dalian 大连之最繁华街道
Zhang Ye colourful rocks 张掖丹霞
Start to celebrate the spring festival 年的味道
Magic Yardang devil city神奇的雅丹魔鬼城
A glimpse of the old street in Dalian 大连老街一瞥
Ancient architecture – lvshun Museum 建筑摄影
Did you panic when Bts fell? Bts 跌了，你惊慌了吗？
The charming night view of Shanghai迷人的大上海夜景
The Great Ding in West Mountain Lake Wetland Park. 国泰民安的大鼎

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