What lens is suitable for traveling to Gulangyu Island in Xiamen and Tulou in Fujian?

If Gulangyu is visiting various buildings and villas on the island, of course, a wide-angle lens is appropriate; It is also a good scenery to shoot Xiamen from Gulangyu Island, and it is also suitable for wide angle; In addition, the indoor lighting of some museum villas is particularly dim. If there is no flash (5D3 is heavy enough for girls to hold), it is recommended to use a lens with a larger aperture. That is to say, 24-70 and 50 1.4 are suitable for Gulangyu belt.

Tulou needs a wider wide angle than Gulangyu Island, even fisheye or super wide angle is better, because you can take such photos:

50 1.4 is enough if you don't pursue taking pictures of scenery, but just taking pictures of people as souvenirs. Considering the scenery, you can only bring a 24-70. Take two. Do I have to change the lens at any time? If it's for photography, it's ok. If it's for fun, it's more convenient to hang it.