See https://thapbi-pict.readthedocs.io/en/latest/examples/endangered_species/index.html

This example is based on:

    Arulandhu *et al.* (2017) Development and validation of a multi-locus DNA
    metabarcoding method to identify endangered species in complex samples.
    https://doi.org/10.1093/gigascience/gix080
    https://www.ebi.ac.uk/ena/data/view/PRJEB18620
    https://www.ncbi.nlm.nih.gov/bioproject/PRJEB18620/

It will download 354 raw FASTQ files (177 pairs), taking about 6.5GB on disk.
